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mmlu_train_2455
Although change in multicellular species usually takes thousands of years, some species of bacteria undergo major changes in just a few years. One reason for this difference is that these bacteria
[ "are microscopic", "do not contain DNA", "reproduce very quickly", "cause infectious diseases" ]
C. reproduce very quickly
mmlu_train
aquarat_38920
The captain of a cricket team of 11 members is 26 years old and the wicket keeper is 3 years older. If the ages of these two are excluded, the average age of the remaining players is one year less than the average age of the whole team. Find out the average age of the team.
[ "20", "21", "22", "23", "25" ]
D. 23
aquarat
mmlu_train_4220
Tim and Janey woke up earlier than normal. Their stomach were growling. They were ready for breakfast. They had gone to bed at their normal time, but they could not help being up now. So they woke up their father and went downstairs for breakfast. It was so early in the morning the sun was not even out yet. But their dad knew once the kids were up, there was no going back to sleep, so he got started. He gave them each a banana to start. He let them pick either a biscuit or toast. They chose toast. So he made wheat bread toast and put grape jelly on it. The quickly ate it and the orange juice they were given. They then each had a bowl of Rice Krispies before getting showered and dressed. They kissed their mom as she went to work and began enjoying the day off from school by playing in their rooms. Dad thought he'd done a good job feeding the kids. But in two hours, they both were asking for turkey sandwiches for lunch. With Tim and Janey so hungry so soon, their dad knew he was in for a long day. And a busy one in the kitchen. What did the kids eat for breakfast?
[ "Banana, toast, cereal", "Banana, biscuit, cereal", "Banana", "Biscuit, toast, cereal" ]
A. Banana, toast, cereal
mmlu_train
mmlu_train_74958
Early to bed, early to rise, makes a man healthy, wealthy and wise. This is an old English saying. Do you know it before? It says that we must go to bed early and get up early in the morning. Then we should be healthy. We should also be rich (wealthy) and clever (wise). This is true. The body must have enough sleep to be healthy. Children of a young age should have ten hours' sleep every night. Children who don't have enough sleep can't do their work very well. They will not be wise and they may not become wealthy! The body also needs exercise. Walking, running, jumping, swimming and playing games are all exercise. Exercise keeps the body strong. Exercise also keeps the blood moving around inside the body. This is very important. Our blood takes food to all parts of our body. The head also needs blood. Exercise helps us to think better! Which of the following is not true?
[ "Exercise is good for a person's head", "A student should have 10 hour's sleep.", "It's good for you to get up early and go to bed early.", "If you have enough blood, you'll be wise" ]
D. If you have enough blood, you'll be wise
mmlu_train
mmlu_train_56485
THURSDAY, July 9 (Health Day News) -- A new study that found that a lower calorie diet slowed the aging process in monkeys could be the best proof yet that restricted diets might do the same for humans. "The big question in aging research is, 'Will caloric restriction in species closely related to humans slow aging?'" said Richard Weindruch, senior author of a paper appearing in the July 10 issue of Science. This is the first clear demonstration that, in a primate species, we' re inducing a slowdown of the aging process -- showing increased survival, resistance to disease, less brain atrophy and less muscle loss. "This predicts humans would respond similarly," added Weindruch, professor of medicine at the University of Wisconsin and an investigator at the Veterans Hospital in Madison. Another expert noted that, despite some highly publicized studies in certain species, the link between restricted eating and longer lifespan has been far from proven. "The idea that dietary restriction extends lifespan in all species is not true. Many strains of rats and mice do not respond. In some strains, it' s actually deleterious," explained Felipe Sierra, director of the biology of aging program at the US National Institute on Aging (NIA), which supported the new study. "The fact that it doesn't work in some mice but it does seem to work in monkeys is surprising and it gives us hope." But there's a larger question: how to change humans' increasingly careless eating habits. "This finding doesn't give me hope that humans are going to go into dietary restriction," added Marianne Grant, a registered dietitian at Texas A&M Health Science Center Coastal Bend Health Education Center in Corpus Christi. The author most likely wrote this text to _ .
[ "compare the two experiments on rats and monkeys", "illustrate the data from the research", "call on people to pay attention to their daily diets", "introduce a lively debate to amuse the reader" ]
C. call on people to pay attention to their daily diets
mmlu_train
mmlu_train_86668
Students like fast food very much. Many of them like to meet friends in a fast food restaurant. They can eat many kinds of food and listen to music in the restaurant. They like to have chicken, French fries, hamburgers, salad and Cola. Their favorite food is ice-cream. But I don't think fast food is healthy. I like vegetables and fruits. They are healthy food. _ are healthy food.
[ "French fries and chicken", "Hamburgers and Cola", "Vegetables and fruits", "Cola and ice cream" ]
C. Vegetables and fruits
mmlu_train
mmlu_train_52023
Exercise seems to be good for the human brain,with many recent studies suggesting that regular exercise improves memory and thinking skills.But an interesting new study asks whether the apparent cognitive benefits from exercise are real or just a placebo effect -- that is,if we think we will be "smarter" after exercise,do our brains respond accordingly?The answer has significant implications for any of us hoping to use exercise to keep our minds sharp throughout our lives. While many studies suggest that exercise may have cognitive benefits,recently some scientists have begun to question whether the apparently beneficial effects of exercise on thinking might be a placebo effect.So researchers at Florida State University in Tallahassee and the University of Illinois at Urbana Champaign decided to focus on expectations,on what people anticipate that exercise will do for thinking.If people's expectations jibe closely with the actual benefits,then at least some of those improvements are probably a result of the placebo effect and not of exercise. For the new study,which was published last month in PLOS One,the researchers recruited 171 people through an online survey system,they asked half of these volunteers to estimate by how much a stretching and toning regimens performed three times a week might improve various measures of thinking.The other volunteers were asked the same questions,but about a regular walking program. In actual experiments,stretching and toning program generally have little if any impact on people's cognitive skills.Walking,on the other hand,seems to substantially improve thinking ability. But the survey respondents believed the opposite,estimating that the stretching and toning program would be more beneficial for the mind than walking.The estimates of benefits from walking were lower. These data,while they do not involve any actual exercise,are good news for people who do exercise."The results from our study suggest that the benefits of aerobic exercise are not a placebo effect," said Cary Stothart,a graduate student in cognitive psychology at Florida State University,who led the study. If expectations had been driving the improvements in cognition seen in studies after exercise,Mr.Stothart said,then people should have expected walking to be more beneficial for thinking than stretching.They didn't,implying that the changes in the brain and thinking after exercise are physiologically genuine. The findings are strong enough to suggest that exercise really does change the brain and may,in the process,improve thinking,Mr.Stothart said.That conclusion should encourage scientists to look even more closely into how,at a molecular level,exercise remodels the human brain,he said.It also should encourage the rest of us to move,since the benefits are,it seems,not imaginary,even if they are in our head. What can we know about the research Cary Stothart and his team carried out?
[ "They employed 171 people to take part in the actual exercise.", "The result of the research removed the recent doubt of some scientists.", "The participants thought walking had a greater impact on thinking ability.", "Their conclusion drives scientists to do research on the placebo effect." ]
B. The result of the research removed the recent doubt of some scientists.
mmlu_train
mmlu_train_20275
I had been to several doctors as a child, but I have a special place in my heart for Dr. Vincent. He was a Pediatric Cardiologist at UCLA back in 1971 who saved my life. I was eight years old at the time with a severe heart problem and I needed heart surgery. My Mom did not have the money, and without the surgery there was a real good chance I would not live to be thirteen years old. After contacting several organizations Dr. Vincent was able to get financial help for me through United Way, a Crippled Children's Organization. Dr. Vincent was a handsome man; he was also very gentle and caring. I remember being in the hospital for an Angiogram test, and during the procedure I was crying terribly, so the medical staff called in Dr. Vincent to calm me down, and he was able to comfort me when no one else could. Then the time came for me to have heart surgery; there was a fifty- percent chance that I would not make it through the surgery because it was experimental. At the time I was only the second or third person to have this procedure done. I was absolutely terrified, and again Dr. Vincent reassured me he would see to it that everything would be all right. I had a lot of confidence and trust in Dr. Vincent; He came to see me after the surgery, which was extremely painful but very successful, and brought me a stuffed animal. I was so surprised to get this gift from Dr. Vincent; I gave him a hug. I guess Dr. Vincent must have known I was feeling very lonely and scared. You see, I had no family or friends visit me while I was in the hospital except for my Mom, and I am not sure why. I do know one thing; I had a wonderful doctor who took the time to help a scared little girl who felt all alone. This was twenty eight years ago, so wherever you are Dr. Vincent, I want to thank you for not only saving my life, but you helped me live a normal productive life, and for showing me that you truly cared, for that I will be eternally grateful to you. Which of the following is true except _ .
[ "the operation was experimental.", "she didn't trust in Dr. Vincent", "the operation would be extremely painful", "she felt scared and all alone" ]
B. she didn't trust in Dr. Vincent
mmlu_train
mmlu_train_61989
Our world is a noisy place, but quiet places remain. Eight years ago, audio engineer Gordon Hempton identified the quietest place in the continental United States. He calls the place "One Square Inch of Silence." He has used his symbolic spot in a northwestern rain forest to campaign against noise pollution. But the self-described "Sound Tracker" is now going deaf. For Gordon Hempton, it started with an experience known to many people. "I was lying in the bed in the springtime about a year ago. The sun was shining. The birds could be singing. They should be singing. But I was hearing none. I knew my life was going to be different." Hempton's eyes get watery as he describes his cruel situation. More than 20 years ago he trademarked his nickname as "The Sound Tracker." Sharp hearing defined his career as an Emmy award winning sound recordist. It also led to his activism against noise pollution. He has circled the globe three times in search of the perfect sounds of nature. Hempton says his hearing loss is quickly getting worse but he has to finish his project. "I am running a race to finish the Quiet Planet collection." That's the title of a planned 19-volume set of nature recordings. The sound tracks could be licensed for use in movies, video games, exhibits, plays and the like. Volunteer assistants now help Hempton review and edit sound files and identify imperfections. The exact cause of his hearing loss is not clear. Doctors say it may be the result of an infection, or a tumor or a combination of things. Hempton is self-employed. His health care plan does not pay for hearing loss treatment. So, for now, he's directing his attention to completing his "greatest hits" album. "After I get it finished, I have an economic cash flow to get my hearing back. That's the first thing on my to-do list." He's hopeful his hearing loss can be recovered. What may be the best title of the text?
[ "Searching for the sound of nature.", "Hoping to get the hearing back.", "Deaf fighter against noise pollution.", "Successful Sound-Tracker going deaf." ]
D. Successful Sound-Tracker going deaf.
mmlu_train
arc_challenge_386
Which marine ecosystem is independent of sunlight?
[ "estuary", "whale fall", "black smoker", "open ocean" ]
C. black smoker
arc_challenge
mmlu_train_28510
If your child has mobile internet access, it will be more difficult to monitor and control his or her internet use. Kids are turning to the internet for everything from hanging out with friends to shopping, which makes it harder for parents to keep track of their online activities. Fortunately, there are many choices for controlling what your kids see on their computers, laptops, and mobile devices. Content blockers and filters are great tools to use for younger kids. They allow you more control over where they go and what they do online. A content blocker can block some unhealthy websites or limit a child's search to the kind of sites. A content filter can scan sites and pictures and block those sites that contain certain words, key phrases, or content. Consider tracking software for older teenagers. This software enables you to see which sites your children have visited, tracking their path online. This tool gives young people more freedom to explore the Internet, but it also allows you to check that they are using the internet responsibly. Let your teenagers know that you trust them, but that you will be regularly checking that they are visiting appropriate sites online. Even if you use content blockers, filters, and trackers, you know that a lot of kids figure out ways to get around these, so it's important to remain alert . Remember that not all adult sites can be identified by blocker, filter, or tracker software. That's why it's important to talk to your kids about what to do when something inappropriate or scary comes up. Nothing can replace involvement and supervision by adults. Keep monitoring how your kids use the internet on a regular basis without getting into the role of internet traffic police. Parents should remain alert when they monitor kids' internet use because _
[ "content blockers, filters, and trackers are useless.", "lots of kids figure out ways to get around content blockers, filters, and trackers.", "not all adult sites can be identified by blocker, filter, or tracker software", "nothing can replace involvement and supervision by adults" ]
B. lots of kids figure out ways to get around content blockers, filters, and trackers.
mmlu_train
arc_easy_800
Vinegar and water are placed in a container and stirred. What is formed when they are mixed?
[ "gas", "solid", "solution", "compound" ]
C. solution
arc_easy
aquarat_24570
In a locality there are ten houses in a row. On a particular night a thief planned to steal from three houses of locality. In how many ways can he plan such that no two houses are next to each other?
[ "56", "73", "80", "100", "120" ]
A. 56
aquarat
mmlu_train_17981
ABC News anchor Peter Jennings died on Aug.7, 2005 at home in New York after a brief battle with lung cancer. ABC News anchors said they hope if anything good can be taken from Jennings' death, it is a great awareness of the dangers of smoking. "I want to give a message," Barbara Walters said. "If you have kids who are smoking, tell them that we lost Peter." Lung cancer is the worst killer in America, taking more lives each year than any other cancer, according to the America Cancer Society. About 160,440 Americans die each year of cancer, making up 28 percent of all cancer deaths. More than 87 percent of lung cancers are smoking related. Dr. Derek Raghavan, director of the Cleveland Clinic' s Taussing Cancer Center , said that once a person stops smoking, he starts getting better. Three to five years after quitting, the possibility of getting lung cancer is reduced by half. Warning signs of lung cancer can also be mixed with symptoms connected with long-term smoking. The three main warning signs are an increase of coughing that doesn't clear up, coughing up blood and sharp chest pains. People with those symptoms should see a doctor. Raghavan said there have been promising developments in the treatment of lung cancer, including uses of radiation and surgery and drugs. "But the fact is that stopping smoking is the most important thing we can do," Raghavan said. "There is no treatment that even comes close." To fight against lung cancer, what matters much to smokers is _ .
[ "to receive the treatment of lung cancer", "to do exercise regularly", "to see a doctor in time", "to stop smoking" ]
D. to stop smoking
mmlu_train
mmlu_train_77406
Do you have the experience of taking music lessons against your wishes? Perhaps you have complained about it because you thought it took you much playtime. But now you'd better thank your parents for their time and money spent on your musical training. A recent study suggests music lessons can make children have better memories than their peers . The Canadian study showed that after one year of musical training, children did better on a memory test than those who didn't take music lessons. The researchers made the children aged between 4 and 6 into two groups -- one group of children took music lessons outside school, and the other didn't take any musical training. In one year, they took four tests in different times. The results showed brain development changes at least every four months. The children taking music lessons not only did better in musical listening but also made faster progress in other ways, such as reading, writing, math and IQ. People say music is the good medicine for a broken heart. Now it seems music can also help us to improve our memories. We are sure to find more and more in the wonderful world of music. The Canadian study showed that brain development changes _ .
[ "once a week", "at least every four months", "four times a year", "twice a year" ]
B. at least every four months
mmlu_train
mmlu_train_11599
As dangerous as sharks may have seed to people after watching Jaws, which was released on June 20,1975, the recent disastrous decrease in their numbers show that people have proven far more dangerous to sharks. This disastrous decline is due in large part to commercial fishing of sharks. "The market for shark fins in East Asia opened up thanks to changes in their economy, increasing their ability to spend money on things such as shark fin soup," Burgess said. However, the biggest worry for sharks and their relatives, the skates and rays, which are suffering a similar fate, "is how they are killed incidentally when fishermen try and take other fish--the problem of bycatch ," Burgess explained. "They may be thrown back afterward, but they're still dead." The key of the problems behind bringing sharks back is that "they're not the same as other fish," Burgess said, "Sharks are slow growing and slow to reach maturity. Sharks are live bearers, which means females keep their young in their body just like us, but instead of nine months, it takes 12 to 18 months or more in sharks. Also, sharks generally can't give birth again until a year after they've given birth--sometimes they're on a three-year cycle. So once you get a shark population knocked down, this 'life in the slow lane' means that recovery is measured in decades rather than years."\ Burgess said, "I'm on the recovery team for it, but the recovery plan for that is over the course of 100 years. So I won't see them recover, nor will you, nor will your children. That's what it means when these animals go down--they're down a long time." Any measures aimed at saving sharks must not only consider byeatch, "which is the real killer right now," but also encourage interactional cooperation, Burgess said. "Sharks are very migratory, and many species cross borders," he said. "We can protect them only by getting many govemment to come aboard. That's the hardest part about this." Bringing sharks back is difficult because _ .
[ "they're like the other fish", "their reproductive rate is slow", "they can't give birth again", "their life cycle is only 3 years" ]
B. their reproductive rate is slow
mmlu_train
mmlu_train_51903
Ransom Myers of Dalhousie University in Nova Scotia warned, using solid science and careful analysis, of the dangers of overfishing. _ and he wasn't afraid to report bad news. As the Guelph Mercury reported, the 54-year-old biologist, originally from Mississippi, was known for his research and warnings about the extinction of marine life around the world. He developed a passion for marine protection during his days in St. John's, Newfoundland, Canada, where he worked for the Department of Fisheries and Oceans at a time when the industry was watching the collapse of the cod fishery. He became, says the Guelph Mercury, a lone, unpopular voice in the discussion about the cause of the collapse, insisting overfishing was the main factor. The world was spending its energy fighting over the few fish left instead of cutting catch limits before it was too late. He warned governments, the fishing industry and consumers, that unless commercial fishing was reduced, many large marine species would become extinct, leading to economic disruptions, food shortages, and lasting damage to marine ecosystems. He said his conclusions were shocking because people had lost sight of the true effect of the declines and they did not look back far enough in history. In other words, he said, "We've forgotten how big fish used to be and how many of them once lived in the sea." According to Ransom Myers, the reason why people found his conclusions shocking was that _ .
[ "they didn't have a good knowledge of the living habits of fish", "they could still catch a great many big cod", "they didn't know the great differences between the present and the past marine fishery", "they thought his research was not based on a detailed analysis" ]
C. they didn't know the great differences between the present and the past marine fishery
mmlu_train
arc_easy_1509
Frog eggs hatch into tadpoles, and then tadpoles gradually develop into frogs. This process is known as
[ "adolescence.", "crossbreeding.", "regeneration.", "metamorphosis." ]
D. metamorphosis.
arc_easy
mmlu_train_75908
Dear Mr Han, I just turned 12 years old, but I am very thin and not as tall as my classmates. My brother is 20 and is very tall. My father is also very tall. I eat lots of vegetables every day. I like eating fruit, but I don't like eating meat. I sleep for eight hours a day. I want to be tall. I am taking medicine. I think that medicine can make me grow tall. My head teacher tells me that you are a great Chinese doctor. Can I grow tall? Do I need to take the medicine? Yours, Jack Dear Jack, I think that you can grow tall, because your father and brother are both very tall. You are still growing. As for the medicine, you should stop taking it. It is not good for your health. You should eat more meat. I am happy that you like eating vegetables and fruit. A balanced diet is very important for your health --and it can make you grow tall. Yours, Mr Han ,. How old is Jack's brother?
[ "Eleven years old.", "Twelve years old.", "Twenty years old.", "Thirty years old." ]
C. Twenty years old.
mmlu_train
mmlu_train_54060
The next generation of smart phone could combine the date from its gyroscopes with a built-in compass to allow you to track your indoor movements even without GPS. Research described it in the international Journal of Innovative Computing and Applications by Shahid Ayub of Lancaster University, and his colleagues there and at HW Communications, suggests that the embedded inertial sensors in many smart phones have added the facility to be used for localization and tracking applications. The primary benefit of using smart phones is that no additional infrastructure would need to be installed for monitoring personnel movements in a wide variety of situations not least staff, equipment and inventory movements in warehouse facilities, shopping malls and factories. In contrast, other technology being proposed would require new equipment,such as RFID technologies. However, smart phones do not yet have the ability to pinpoint their location without recourse to the GPS system, which is not accessible indoors and has the added disadvantage of using up battery power very quickly even if it could be used. Inertial navigation only provides the necessary information to a specified starting point the team says. This is useful for anyone with a non-GPS smart phone who wishes to track the route they take when walking or jogging if they specify their starting point. The team suggests that pedestrians indoors could be positioned using a combination of the smart phone accelerometer and an built-in digital compass, something that will become available in future smart phones. They have now investigated the potential of three different smart phone placement modes: idle, hand held and listening, which could be used with pedestrian dead reckoning (PDR) techniques to allow users to record the path they follow or for various kinds of workplace or other monitoring requirements. "The technique could be used in underground tube stations, airports , train stations where there is no infrastructure installed for tracking or navigation," Ayub explains, "It can also be used for location-based service applications. In big shopping malls it becomes easier to navigate to a target shop or meeting place, while in large offices and across industry it could be used to track employees and control movements of workers in restricted areas." What would be the best title for the text?
[ "Tracking Pedestrians Indoors Using Their Smart Phones", "GPS Found to Have Defects", "Additional Infrastructure Should Be Constructed in Airports", "People Need to Replace Their Current Smart Phones" ]
A. Tracking Pedestrians Indoors Using Their Smart Phones
mmlu_train
mmlu_train_31676
As a health editor, I spend the majority of my day poring over content related to health. At HuffPost, we're lucky to talk to experts on a daily basis about how to live our best lives. It's clear that life would be healthier if we would just do the following things. Sure, some of these are easier said than done. Which of the following has something to do with the immune system?
[ "exercise", "sleep", "emotional intelligence", "mood" ]
B. sleep
mmlu_train
mmlu_train_2527
Which piece of lab equipment is necessary to determine the mass of 2 teaspoons of sand?
[ "glass beaker", "balance", "eye dropper", "graduated cylinder" ]
B. balance
mmlu_train
mmlu_train_58280
Bea, a five-year-old girl, was born with a severe illness which means she has to be kept away from other children of her age, because her body is so weak that she would be unable to fight off a common cold. Bea was diagnosed with this disease when she was five months old. Since then, the hospital has become her second home, medicines for food, and all kinds of treatments her friends. Bea received a very special treatment when she was four years old, which would allow her to be like a normal child if successful. After that, she spent two weeks in ICU before living for four months on a separate ward . Bea was allowed home in February but still needed a special tube in her nose to send in medicines every two days. Her parents clean the house from top to bottom every two days and hoover each morning to make sure Bea is free from any possible bacteria. Anna, Bea's mother, said, "she is weak but so strong. We've never seen any child stronger than her. It seems as if nothing in the world could beat her. We really hope to send her to school next year." She used to drive on the local playground, but Bea was only allowed to watch sitting in the car. "It was heartbreaking to see Bea staring at the running and laughing children there. She never stopped fighting the disease. I know she's dying for such a normal life." Hearing of Bea's story, the Make-A-Wish Foundation has paid for a play park to be built in her back garden. "Bea is very brave and she has encouraged many children like her," said the chairman of the foundation. What makes Bea so brave to fight against this serious disease
[ "Her parents' encouragement and care.", "Her dream of owning a play park.", "Her wish to become a normal child.", "Her doctor's skills and experience." ]
C. Her wish to become a normal child.
mmlu_train
aquarat_3709
Paint needs to be thinned to a ratio of 2 parts paint to 1.5 parts water. The painter has by mistake added water so that he has 6 litres of paint which is half water and half paint. What must he add to make the proportions of the mixture correct?
[ "1 litre paint", "1 litre water", "½ litre water and one litre paint", "½ litre paint and one litre water", "None of these" ]
A. 1 litre paint
aquarat
aquarat_10417
A , B , and C started a partnership business by investing $45,000 , $63,000 , and $72,000 respectively. At the end of the year, the profit was distributed among them. If C's share of profit is $16,000, what is the total profit?
[ "$28,000", "$32,000", "$36,000", "$40,000", "$44,000" ]
D. $40,000
aquarat
aquarat_46721
There are 76 lights which are functional and each is controlled by a separate On/Off switch. Two children A and B start playing with the switches. A starts by pressing every third switch till he reaches the end. B, thereafter, presses every fifth switch till he too reaches the end. If all switches were in Off position at the beggining, How many lights are switched On by the end of this operation?
[ "28", "30", "32", "34", "36" ]
A. 28
aquarat
mmlu_train_96764
A Bald Eagle's ability to build it's nest is
[ "observed trough observation of others", "a biological trait passed down in it's genes", "learned through trial and error", "learned from watching its mom" ]
B. a biological trait passed down in it's genes
mmlu_train
arc_easy_1175
Ella has several wooden blocks. When Ella holds the blocks in her hand, she feels that they are rough. Which term best describes what Ella feels?
[ "a prediction", "a conclusion", "a hypothesis", "an observation" ]
D. an observation
arc_easy
aquarat_11311
A man is 24 years older than his son. In two years, his age will be twice the age of his son. What is the present age of his son?
[ "23 years", "22 years", "21 years", "20 years", "19 years" ]
B. 22 years
aquarat
aquarat_8516
Round off the given number to nearest hundreds 5672
[ "5800", "5600", "6000", "5700", "5900" ]
D. 5700
aquarat
mmlu_train_2066
Which is a hypothesis that can be easily tested?
[ "The Moon causes high tides.", "During which season are the tides the highest?", "What is the phase of the Moon when tides are highest?", "When the Moon is full, the tides will be at their highest." ]
D. When the Moon is full, the tides will be at their highest.
mmlu_train
aquarat_11086
A man jogging inside a railway tunnel at a constant speed hears a train approaching the tunnel from behind at a speed of 30 km/h, when he is one third of the way inside the tunnel. Whether he keeps running forward or turns back, he will reach the end of the tunnel at the same time the train reaches that end. The speed at which the man is running is:
[ "6 km/hr", "8 km/hr", "10 km/hr", "12 km/hr", "None of these" ]
C. 10 km/hr
aquarat
aquarat_18050
The average of 9 observations was 9, that of the 1st of 5 being 10 and that of the last 5 being 8. What was the 5th observation?
[ "9", "8", "7", "6", "4" ]
A. 9
aquarat
mmlu_train_58450
Experts believe that storms and severe weather in North America and Asia have disrupted bird flight paths across the world and swept huge numbers of bird species towards the British Isles. Birds flying to the other side of the Atlantic or to the Pacific to lay their eggs have been trapped in Britain and Ireland, adding their numbers to native species, and causing great excitement in the bird-watching community. Local birdwatchers have already observed a total of 442 species in the British Isles this year. The highest number ever seen in one year is 445, in 2008. "We only need four more to break our record," said Lee Evans, who runs the British Birding Association. "With three months to go I'm sure we'll do it." Last month an extremely rare Siberian Rubythroat bird was seen in Scotland, sending hundreds of birdwatchers north in the hope of catching a glimpse of this colourful Asian beauty. Another very uncommon bird, the bufflehead duck was cited in Cornwell and caused similar excitement. "I couldn't believe it," said Evans. "The poor thing was completely _ . It must have been blown to England by the storms while trying to fly from Canada to the southern United States for the winter. That's 3000 miles!" Evans said that global warming over the past decade was playing a key role in transforming bird movements across the world. In addition, melting Arctic sea ice may also be opening up bird flight paths over the North Pole, making it easier for birds from the Pacific -- such as the slaty-backed gull and tufted puffin, both of which appeared in London earlier this year -- to reach Britain. Bird-watching is becoming an increasingly popular hobby among all age groups, added Evans. "A fifth of our members are under 18. This is a round-the-year hobby that you can enjoy from the kitchen window or from a car. More and more people are bird-watching, and as a result more and more unexpected species are being spotted in the British Isles." What is the passage mainly about?
[ "The results of global warming.", "Changes in the British bird population.", "Increasing environmental pollution.", "Worsening British weather." ]
B. Changes in the British bird population.
mmlu_train
aquarat_33769
In a game of billiards, A can give B 20 points in 60 and he can give C 30 points in 60. How many points can B give C in a game of 100?
[ "17", "25", "88", "26", "27" ]
B. 25
aquarat
arc_easy_1498
What is necessary to use on a telescope in order to photograph solar flares and solar prominences?
[ "a light filter", "a chronograph", "an electric drive", "a series of mirrors" ]
A. a light filter
arc_easy
mmlu_train_59261
Only three local students won Chinese Blog Competition. And 15 of the 18 awards went to students from China. 170 students' task: to get a fully-designed blog up and running, complete with many postings based on a theme of choice--all written in Chinese. Themes ranged from local opinions-such as the usage of Singlish, education and whether Singapore can be a cultural centre-to food blogs. The entries were judged on Language proficiency and the quality of writing, as well as the design and level of exchanging ideas with readers. Academics from the National University of Singapore and the SIM University IT experts, and a journalist from Chinese newspaper Lianhe Zaobao in Singapore made up the judges. In the end, only three Singaporean students made it to the award list--the rest of the awards were swept up by students from China. "No surprise, " said Mr. Chow Yaw Long, 37, teachers in charge from Innova Junior College, which organized the event. "Although the topics were local subjects, the foreign students were generally better in terms of the content of the posts and their grasp of the Chinese language. " One of the three local students winning the first prize in the Best Language Award was blogger Christina Gao 19, from the Saint Andrew's Junior College, who spared no effort in researching for and writing her blog. Each entry took her between five and seven days to produce, complete with pictures and even podcasts Her advice for bloggers is: Be responsible "Some bloggers out there only seek to blame the authorities and other bloggers." Said Miss Gao. "I think they lack responsibilities and there is no value to their posts." The competition was organized by _ .
[ "the National University of Singapore", "Chinese newspaper Lianhe Zaobao", "the Saint Andrew's Junior College", "Innova Junior College" ]
D. Innova Junior College
mmlu_train
mmlu_train_46211
Mark Ramirez, a senior executive at AOL, could work in the comfortable leather chair, if he wanted. No, thanks. He prefers to stand most of the day at a desk raised above stomach level. "I've got my knees bent. I feel totally alive," he said. "It feels more natural to stand." In the past few years, standing has become the new sitting for 10 percent of AOL employees at the firm's Virginia branch. Part of a standing popularity is among accountants, programmers, telemarketers and other office workers across the nation. GeekDesk, a California firm that sells desks raised by electric motors, says sales will triple this year. Standers give various reasons for taking to their feet: It makes them feel more focused, prevents drowsiness , and makes them feel like a general even if they just push paper. (Former Defense Secretary Donald Rumsfels works standing up. So does novelist Philip Roth.) But unknown to them, a debate is spreading among ergonomics experts and public-health researchers about whether all office workers should be encouraged to stand--to save lives. Doctors point to surprising new research showing higher rates of diabetes, obesity, heart disease and even mortality among people who sit for long stretches. A study earlier this year in theAmerican Journal of Epidemiologyshowed that among 123,000 adults followed over 14 years, those who sat more than six hours a day were at least 18 percent more likely to die during the time period studied than those who sat less than three hours a day. "Every rock we turn over when it comes to sitting is astonishing," said Marc Hamilton, a leading researcher on inactivity physiology at the Pennington Biomedical Research Center in Louisiana. "Sitting is harmful. It's dangerous. We are on the cusp of a major revolution." He calls sitting "the new smoking". Not so fast, other experts say. Standing too much at work will cause more long-term back injuries. Incidences of varicose veins among women will increase. The heart will have to pump more. Hedge, the Cornell professor, isn't a fan of all this standing. "Making people stand all day is dumb," he said. The sensible and most cost-effective strategy , he said, is to sit in a neutral posture , slightly reclined , with the keyboard on a tray above the lap. This position promotes positive blood flow. Workers should occasionally walk around, stretch and avoid prolonged periods at the desk. The key, he said, is movement, not standing. According to the studies in the passage mentioned, _ .
[ "it is better not to stand more than 6 hours", "sitting too long can arouse illnesses easily", "sitting long is specially harmful to adults", "standing much is better than sitting long" ]
B. sitting too long can arouse illnesses easily
mmlu_train
aquarat_24533
A person was asked to state his age in years. His reply was, "Take my age three years hence, multiply it by 3 and then subtract three times my age three years ago and you will know how old I am." What was the age of the person?
[ "18 years", "20 years", "24 years", "32 years", "34 years" ]
A. 18 years
aquarat
mmlu_train_69784
There is a famous English saying "You are what you eat", and _ means what you put in your mouth will become part of you. Many experts use it to tell people it's important to have a good eating habit. For example, too much sweet food makes a person overweight . To avoid being fat, kids are told to keep off sweet food. But, a team of American scientists have found something new about eating sweet food. "When we say some people 'sweet', we mean they are kind and friendly to us. Perhaps this word can help us learn more about people's feelings and acts." said Brian Meier, a scientist from the study team. "Taste is something we experience every day. What we have done is to find whether we can know someone's character and behavior depending on their taste." In one of their experiments , students were asked questions about their character-whether, for example, they were soft-hearted or not. Then they were asked to make a list of their favorite food. According to their answers, the scientists found that the students who liked sweet food were nicer. In their another experiment, the scientists found that people who preferred sweet food such as cookies and chocolate were more willing to help other people in need, and those who ate non-sweet food such as chips weren't. For example, people with a sweet tooth were more likely to volunteer to clean up their city, visit sick children in the hospital and so on. The result of the experiments is that people's helpfulness or being nice has something to do with their taste for sweet food. So eating sweet food is a useful way to make people nice and helpful. Next time, try some ice-cream. ,. The scientists found that the people who preferred _ were less helpful.
[ "ice-cream", "chocolate", "chips", "cookies" ]
C. chips
mmlu_train
mmlu_train_96696
the color of an object can be discovered by
[ "seeing it", "touching it", "sniffing it", "licking it" ]
A. seeing it
mmlu_train
mmlu_train_94314
A student wants to figure out how many calories are needed to perform various activities. A list of some everyday activities is made, and the number of calories burned during each activity is recorded. Which method is the best way for the student to display and evaluate the information?
[ "write a paragraph", "make a line graph", "develop a formula", "create a table" ]
D. create a table
mmlu_train
mmlu_train_68107
Last Friday my friend Deborah asked me if I would like to learn how to make tofu. I couldn't think of any good reason not to be interested in, so I said, "Yes". The next day I met her and another three nice people at the Hodo Soy Beanery Oakland. I enjoyed the trip. I got a lot from the trip. The following is what I learnt. Tofu has a history of 2,000 years. Although the word "tofu" is from Japanese, the food maybe comes from China. There are two main kinds of tofu: soft tofu and firm tofu . In some parts of Asia, people use tofu as a kind of meat. Douhua is one kind of soft tofu. It is a popular breakfast food in China. Because it is very soft, people can't eat it with _ , but with a spoon . People often eat it as a snack and often add spring onions and gravy to it. In Malaysia, people usually eat douhua with white or dark sugar water. ,. We can learn from the passage that the food tofu may come from _ .
[ "Japan", "China", "Oakland", "Malaysia" ]
B. China
mmlu_train
mmlu_train_16578
Many people have wondered what makes the oceans rise and fall on the word's beaches twice a day. Those tides are caused by the force of the Moon's gravity and the rotation of the Earth. Gravity acts on the center of any solid object. The Earth is mostly molten rock, but compared to the oceans, we can think of it as a solid object. As you know, the oceans are fluid and lie on the surface of the Earth. When the Moon is overhead, the oceans are four thousand miles closer to the Moon than the Earth's center is. Because the oceans are closer, the Moon pulls harder on the water than on the Earth. This stronger pull makes the water bunch up a little under the Moon, creating a high tide. At the same time, the oceans on the opposite side of the Earth are four thousand miles farther from the Moon than the Earth's center is. The Moon's pull on this water is weak. This water bunches up because it is "left behind"(making another high tide) as the Earth is pulled slightly towards the Moon. When the waters bunch up on these two sides of the Earth, they draw water away from the other sides of the Earth, which creates the low tides. As the Earth rotates, different parts of the land and oceans pass through the high-tide and low-tide zones. And that makes the waters on our coasts go up and down. Which of the following facts can be inferred from the passage?.
[ "Low-tide zones are near to high-tide zones.", "The oceans of the Earth are a whole body.", "High-tide zones are separated from low-tide zones.", "The Earth's surface is 4000 miles away from the Moon." ]
B. The oceans of the Earth are a whole body.
mmlu_train
arc_easy_102
A student wants to cut a piece of string for a class activity. The length of the string is measured BEST in which units?
[ "Gallons", "Liters", "Miles", "Centimeters" ]
D. Centimeters
arc_easy
aquarat_20317
A and B form a study group and divide a 75 question study guide. If A answer 7 questions per hour, while B answer 5 every hour, what fraction of the study guide is incomplete after 4 hours?
[ "48/75", "20/75", "27/75", "28/75", "16/75" ]
C. 27/75
aquarat
mmlu_train_61971
James knew the decision was not going to be an easy one to make as he sat on the hill near the small town that he lived in. There was no one he could turn to for advice. His only sister lived away and he hardly ever saw her and when his sister came over, they always ended up in an argument. It had been a hot day and James's clothes seemed to stick to his body. He had felt terrible for weeks and he was just tired of feeling sick. He had started vomiting after he would eat anything and he knew that something would have to be done. After going to the doctor, he was told to come back in a few days. The next three days had gone by slowly and it was time for his visit to the doctor. He had been shown into the doctor's office and James knew it was bad news. The end result was he had stomach cancer. James sat on the hill looking down at the town and wonder what he would do. Taking out his phone, he dialed his sister's number and told her the bad news. She started to cry and said, "If anything happens to you, I will be alone in this world." Marie, his sister said, "You are moving up here and you will live with me until you get back on your feet, so go home, pack up and I will be there to get you in two days." He smiled and said, " _ sounds wonderful, but I still haven't decided if I am going to have the surgery or not?" Hearing this, she softly whispered, "Of course you are having the surgery. I will pick you up in two days. I love you." James knew the final word was still up to him and he would think about it because this was a decision that wouldn't come easy to him. James decided to go to his doctor when _ .
[ "he felt it had been too hot for him", "he vomited anything he ate", "he felt sick for several weeks", "he got a call from his sister" ]
B. he vomited anything he ate
mmlu_train
mmlu_train_9052
Compared to high heels , they don't look dangerous, but flip-flop wearers should think twice before slipping on a pair. The National Health Service spends PS40 million a year treating injuries caused by wearing the casual footwear. More than 200,000 people end up in hospital every year after suffering falls or developing long-term problems. Once worn only at the beach, flip-flops have become the regular summer footwear of choice for women, with two in five women owning at least one pair. But experts are warning the public of the dangers of wearing flip-flops, such as the risk of joint pains. They say flip-flops force people to change the way they walk so that when taking a walk with long steps they put pressure on the outside of their foot, rather than their heel, causing long-term damage. And there is also the risk of serious injury. Frequent complaints include twisted ankles, but some have broken their arms or wrists after falling because their flip-flops caught on uneven ground. Many also suffer aching toes as they constantly wear them. Mike, a spokesman, warned wearers of the damage done by flip-flops. He said, "They land on the outside and then roll the foot inwards putting all the pressure on the big toe." This constant rolling puts pressure on the ankle joint, causing it to weaken. The lack of support of the flip-flop also causes pain on the inside of the foot and lower leg. And if you're not used to wearing them, they can cause blisters , he added. Doctors say flip-flops cause far more damage as they are worn for longer periods of time. Emma Supple, consultant podiatrist , said, "Flip-flops are universally popular. They are easy to put on and easy to wear but women do need to be mindful that wearing on hard flat surfaces can cause considerable foot and leg problems." She encouraged women to wear suitable shoes to help recover from summertime injuries. What is the text mainly about?
[ "The benefits of wearing high heels.", "The dangers caused by wearing flip-flops.", "The advantages and disadvantages of wearing flip-flops.", "Some advice on how to avoid injuries caused by wearing high heels." ]
B. The dangers caused by wearing flip-flops.
mmlu_train
mmlu_train_60712
When thinking about placing a human being in space, one of the most important questions was how to design special clothing needed to protect a person from the dangers of the space environment. The cold of space will freeze skin in a short time. The fierce heat of the sun can cause serious burns. The lack of atmosphere can cause gases in the body to expand and even burst. With no oxygen to breathe, a human being will die in only a few moments. Radiation from the sun is another risk in space. So is damage from small pieces of rock and objects like meteoroids . In 1933, an American flyer, Wiley Post, designed one of the first successful devices to protect a pilot at extreme heights. It was a large device that looked like a can surrounded the pilot's head. Astronauts in the American space agency (NASA) flew the first American space flights in the early 1960s. The clothing was similar to that invented by Wiley Post. Today, astronauts wear very different protective clothing. It lets them move, do useful tasks, and stay outside their spacecraft in comfort and safety for several hours. The spacesuit is called the shuttle extravehicular mobility unit or EMU. It was designed to _ longer and to permit more movement than earlier spacesuits. The EMU has a number of parts that an astronaut can link together by using only one hand, which makes it possible for each astronaut to select the parts that fit correctly. Nowadays, NASA scientists are also considering the kind of spacesuits that would be needed for exploration on the planet Mars. Because of the gravity on Mars, spacesuits may have to be designed to be lighter than suits used in orbit or on the moon. The equipment may also have to protect astronauts from dust carried in the winds on Mars. And, they must be easy to repair and keep clean during a longer flight to and from the red planet. Which of the following statements is true, according to this passage?
[ "Wiley Post designed the first protective clothing for astronauts.", "Astronauts in earlier spacesuits had difficulty in moving, doing useful tasks and so on.", "EMU has many parts that can be linked together by using two hands.", "Special spacesuits have been used for exploration of the planet Mars." ]
B. Astronauts in earlier spacesuits had difficulty in moving, doing useful tasks and so on.
mmlu_train
mmlu_train_26903
What do you do if you are hit in the mouth and one of your teeth is knocked out? A dentist may be able to put the tooth back in for you, but you have to get to the dentist first.In the meantime, you have to store the tooth so that it will stay healthy. The simplest thing to do is put the tooth back into your mouth, or you could put it in milk.Frank Courts, a dentist at the University of Florida, worked with other researchers to find the safest way of keeping knocked-out teeth.He tried putting teeth into milk, into water, and into cell-culture medium .He also tried, just drying the teeth in the open air.He used teeth that had to be removed from people's mouths for various reasons.The teeth were put into one of the solutions or stored in the air for one hour.Then cells from the root of the teeth were scraped-off the teeth.Dr.Courts and the others then studied how healthy these cells were. The cell-culture medium worked best to keep a knocked-out tooth healthy outside the mouth.However, few people keep cell-culture medium handy at home or in school. The next best thing was milk.But Dr.Courts said that the best thing of all was to wash the tooth and put it right back into its socket in the mouth.For some people, though, this is just too painful or upsetting.So milk will do, until you get your tooth (and your mouth)to a dentist. Milk can be used instead of cell-culture medium to put a knocked-out tooth in because .
[ "milk works better to keep the tooth healthy", "milk causes less pain", "cell-culture medium is not usually handy", "cell-culture medium is more expensive" ]
C. cell-culture medium is not usually handy
mmlu_train
aquarat_35285
Which is the smallest fraction:
[ "11/13", "9/11", "5/4", "5/7", "6/7" ]
D. 5/7
aquarat
mmlu_train_2275
Red-clay bricks have a density of approximately 2000 kg/m^3. Air has a density of 1 kg/m^3. Which of the following has the lowest mass?
[ "2 m^3 of bricks", "4 m^3 of bricks", "6000 m^3 of air", "10,000 m^3 of air" ]
A. 2 m^3 of bricks
mmlu_train
mmlu_train_28060
Babies born in summer are more likely to become short-sighted in late life, a study has shown. As many as a quarter of all cases of short-sightedness are caused by too great an exposure to sunlight in the first weeks of life, say eye experts. They are advising all parents to put sunglasses on their babies during the first weeks. Scientists had already established that over-exposure to sunlight caused shortsightedness in animals. Researchers who compared the months in which babies were born with whether they needed glasses later on say the principle also applies to humans. A study of almost 300,000 young adults-the largest of its kind-showed that those born in June and July had a 25 per cent greater chance of becoming severely short-sighted than those born in December or January. Research leader Professor Michael Belkin, of Tel Aviv University, said it was because prolonged illumination causes the eyeball to lengthen-causing short-sightedness. Hence the more light a newborn is exposed to, the more the eyeball lengthens and the worse the short-sightedness will be. The mechanism which lengthens the eyeball is associated with levels of melatonin , a pigment which protects the skin against harmful rays of the sun. In young babies not enough melatonin is released as protection, meaning they are more _ to sunburn and changes to eyeball shape. Sight expert Professor Daniel O'Leary, of Anglia Ruskin University in Cambridge, said "At the moment we don't know the precise cause of why light exposure affects sight, but the evidence seems to prove that it is one of the reasons for people becoming shortsighted." From what Professor Daniel O'Leary says we can conclude that _ .
[ "there is no evidence that shortsightedness is related to exposure to sunlight", "whether light exposure affects sight still needs to be further proved", "he believes that light exposure can cause shortsightedness", "he tries to give the cause of why light exposure affects sight" ]
C. he believes that light exposure can cause shortsightedness
mmlu_train
arc_challenge_975
Which of the following is a chemical property of matter?
[ "density", "boiling point", "flammability", "shape" ]
C. flammability
arc_challenge
mmlu_train_1393
Which of the following can provide the human body with long-term immunity against some diseases?
[ "antibiotics", "vitamins", "vaccines", "red blood cells" ]
C. vaccines
mmlu_train
aquarat_9570
The current of a stream at 1 kmph. A motor boat goes 35 km upstream and back to the starting point in 12 hours. The speed of the motor boat in still water is?
[ "6", "5", "4", "2", "9" ]
A. 6
aquarat
aquarat_3764
A money lender finds that due to a fall in the annual rate of interest from 8% to 7 3/4 % his yearly income diminishes by Rs. 61.50, his capital is?
[ "24,609", "24,607", "24,600", "24,638", "24,602" ]
C. 24,600
aquarat
mmlu_train_96999
The middle of the day usually involves the bright star nearest to the earth to be straight overhead why?
[ "moon rotation", "human planet rotation", "moons gravity", "global warming" ]
B. human planet rotation
mmlu_train
mmlu_train_40084
Genetically modified ( ) foods have become a focus point of agriculture throughout the news today. This has an effect on many different aspects of the agriculture world. From the seed dealer, to the farmer that buys the seed, to the workers that the farmer sells to; all are affected by the new technologies that are involved in this part of production agriculture. Genetically modified foods have come under heavy fire lately. There are some countries that are against buying these types of foods. They are being tested for safety by the best scientific experts in Europe, the US and the rest of the world. They are not for sale until they have gone through this complete safety process. Since they are a new product, and any slight problem with them could affect a whole country, these tests are very necessary. These safety tests are carried out because of the new rules that were made with the Novel Foods Regulation. Begun in May of 1997, the Novel Foods Regulation set up an EU-wide pre-market system for all novel foods. A novel food is described as one that has not been eaten by EU consumers widely in the past. By setting up this program the EU hopes to keep its consumers safe from any possible side effects of any new food products. There are a variety of ways in which genetic modification has helped food producers. They can improve the nutritional value or the storage conditions of the food. Today there are only two genetically modified foods that have been allowed for use, these are GM soybean and GM maize. Despite any safety checks, many people are still cautious about eating genetically modified foods. By providing these people with the necessary information, we can allow them to make decisions about these foods. What do we know about the novel food?
[ "It's very popular in EU.", "It's bad for people's health.", "It's a new kind of food.", "Its story has been published." ]
C. It's a new kind of food.
mmlu_train
mmlu_train_80344
There is a famous saying from the French politician J.A. Brillat-Savarin that goes: "Tell me what kind of food you eat, and I will tell you what kind of man you are." It can be easy to not really think about what you eat. For example, whenever you go into a supermarket to buy a drink, it is all too easy to pick up an ice cream or a piece of chocolate as well. You might not even really want them, but sometimes their bright, nice packaging can be too hard to refuse. So, in our special food magazine we will show you why you should really pay more attention to what you eat! Food not only influences our health but also our beliefs, customs and personalities. The first article will look at the way fast food is leading to obesity . The famous cook, Jamie Oliver, has made it his purpose to introduce ideas about healthy eating. In a speech, Jamie Oliver told the world that during the 18 minutes that he gave his speech, four Americans would die because of the food that they ate! Obesity is also a growing problem in China. As China Daily reported in February, the number of obese people under the age of 18 in China has reached 120 million. Jamie has worked for 10 years to try and fight this problem. Learning about food is important not just because of health problems but also because many people still don't have enough food today. And we know as the improvement of science sometimes we have to face genetically modified food. Don't worry - we'll make you know more about all these topics in our special article! We'll also tell you something interesting about food. For example, do you know what the largest food on the menu is all over the world? It's the roasted camel and it has been served for several hundred years, often stuffed with chicken, lamb, egg, fish and rice! Hopefully by the time you finish reading this edition , you'll pay more attention to the food that you eat. As Oliver says, food is something that can help us enjoy our life. It is important that we love it! Which of the following is true according to the passage?
[ "Some people may buy some food just because of it's packaging.", "Four Americans died because of Jamie Oliver's speech.", "We have enough food for all the people in the world now.", "Chicken is the largest food on the menu all over the world." ]
A. Some people may buy some food just because of it's packaging.
mmlu_train
arc_challenge_259
A turtle eating worms is an example of
[ "breathing", "reproducing", "eliminating waste", "taking in nutrients" ]
D. taking in nutrients
arc_challenge
mmlu_train_91301
We are all busy talking about and using the Internet. But how many of us know the history of the Internet? Many people are surprised when they find that the Internet was set up in the 1960s. At that time, computers were large and expensive. Computer networks didn't work well. If one computer in the network broke down, then the whole network stopped. So a new network system had to be set up. It should be good enough to be used by many different computers. If part of the network was not working, information could be sent through another part. In this way computer network system would keep on working all the time . At first the Internet was only used by the government , but in the early 1970s; universities, hospitals and banks were allowed to use it, too. However, computers were still very expensive and yet Internet was difficult to use. By the start of the 1990s, computers became cheaper and easier to use. Scientists had also developed software that made "surfing" the Internet easier. Today it is easy to get online and it is said that millions of people use the Internet every day. Sending e-mail is more and more popular among young people. The Internet has become one of the most important parts of people s life. Which of the following used the Internet first?
[ "Hospitals", "Universities.", "Banks", "The government." ]
D. The government.
mmlu_train
mmlu_train_54799
Many people think it is safe to use a cell phone while they are driving. Yet Scores of studies suggest that real multitaskers - those who can carry out multiple tasks equally well, make up just 2 per cent of the population. More surprisingly, the so-called "supertaskers" actually have differently structured brains to the other 98 percent. The brain areas that make supertaskers differ from the rest of the population are the same parts that are most different between humans and nonhuman primates , according to David Strayer, director of the applied cognition lab at the University of Utah. Scientists are unsure of the reason why some brains are different. In fact, we could all benefit from doing just one task at once. In most of us, scientists have located a "bottleneck in the brain" that may explain why we find it hard to do two things at once. The problem appears to be caused by a logjam of nerve messages. Faced with two almost simultaneous tasks less than 300 milliseconds apart, the brain's ability to deal with the second one slows down. The neural response to the second task was postponed until the response to the first was completed. This means that with e-mails, phone calls, text messages and online social media all competing for our attention, often against a background of television, radio or music, our brains can reach information overload. Scientists made the discovery after scanning the brains of volunteers attempting to multitask on a computer. The task was deliberately designed to involve the use of different senses and _ responses. Dr Rene Marois, one of the neuroscientists who carried out the experiment at Vanderbilt University in Nashville, Tennessee, said: "Our research offers neurological evidence that the brain cannot effectively do two things at once." The next step, the neuroscientists say, is finding out "why these areas cannot process two tasks at once." How many people can drive equally well while using a cell phone?
[ "Nobody.", "Everybody.", "2 in 100.", "98 in 100." ]
C. 2 in 100.
mmlu_train
aquarat_3826
The breadth of a rectangular field is 60% of its length. If the perimeter of the field is 800 m.What is the area of the field?
[ "18750 sq.m", "37500 sq.m", "40000 sq.m", "48000 sq.m", "None of these" ]
B. 37500 sq.m
aquarat
arc_challenge_831
A student is using descriptions to classify organisms. One organism is described as having sense organs to detect heat, laying eggs to reproduce, using venom for protection, and having the ability to change body temperature with its surroundings. How would the student classify this organism?
[ "bacteria", "mammal", "reptile", "bird" ]
C. reptile
arc_challenge
arc_challenge_688
Which is an example of organic weathering of rocks?
[ "glaciers moving large pieces of a fractured rock", "tree roots growing in a fractured rock", "ice freezing on a rock surface", "wind blowing sand against a rock surface" ]
B. tree roots growing in a fractured rock
arc_challenge
aquarat_31001
In Rwanda, the chance for rain on any given day is 1/2. What is the probability that it rains on 4 out of 9 consecutive days in Rwanda?
[ "4/7", "3/7", "63/256", "4/28", "28/135" ]
C. 63/256
aquarat
mmlu_train_80496
Leopards live in many parts of the world, from Siberia to Africa. They have a very beautiful yellow skin with large black spots. They live for about 15 years and eat small mammals such as zebras, monkeys, and antelopes .They sleep for about 12 hours a day . Leopards are very solitary animals. They spend most of their time alone in trees, where they wait until a small animal passes. They jump on the animal and then drag it up into the tree, where they eat it. Like many animals, leopards are disappearing because people hunt them. They kill them for their beautiful coats. The Sinai leopard, for example, from Egypt, is now probably extinct . Leopards spend much time in trees because they want to _ .
[ "sleep", "jump", "wait and catch small mammals", "rest" ]
C. wait and catch small mammals
mmlu_train
mmlu_train_36964
"People should have one meat-free day a week if they want to make a personal and effective sacrifice that would help deal with climate change," the world's leading authority on global warming has told The Observer. Dr Rajendra Pachauri, chair of the United Nations Intergovernmental Panel on Climate Change, said that people should then go on to reduce their meat consumption even further. Pachauri, who was re-elected the panel's chairman for a second six-year term last week, said diet change was important because of the huge greenhouse gas emissions and other environmental problems associated with raising cattle and other animals. "It was relatively easy to change eating habits compared to changing means of transport," he said. The UN's Food and Agriculture Organisation has estimated that meat production accounts for nearly a fifth of global greenhouse gas emissions. These are produced during the production. For example, ruminants , particularly cows, give off a gas called methane, which is 23 times more effective as a global warming agent than CO2. Pachauri can expect some opposite responses from the food industry to his advice, though last night he was given unexpected support by Masterchef presenter and restaurateur John Torode. "I have a little bit and enjoy it," said Torode. "Too much for any person is bad. But there's a bigger issue here: where the meat comes from. If we all bought British and stopped buying imported food, we'd save a huge amount of carbon emissions." Professor Robert Watson, the chief scientific adviser for the Department for Environment Food and Rural Affairs, said government could help educate people about the benefits of eating less meat, but it should not regulate. "Eating less meat would help, there's no question about that," Watson said. However, Chris Lamb, head of marketing for pig industry group BPEX, said the meat industry had been unfairly targeted and was working hard to find out which activities had the biggest environmental impact and reduce them. "Some ideas were contradictory," he said. "For example, one solution to emissions from cattle and other animals was to keep them indoors, but this would damage animal welfare. Climate change is a very young science and our view is there are a lot of simple solutions being proposed." What is directly related to global warming?
[ "Consumption of meat.", "Growth of cattle.", "Methane from ruminants.", "Processing of meat." ]
C. Methane from ruminants.
mmlu_train
mmlu_train_75312
Mr. Ellis is very old. He has seen many changes in his home town. He knows that things are different now. But he never forgets the old days. He likes to talk about them. He often talks about his favourite birds, the robins (----). "When I was a boy, these houses were not here. There were wide fields and tall trees. Every spring robins would come. Thousands of them would fly up to the north from the south. They spent the winter in the south. Some would build their nests in the trees near our houses. Then people started to cut down trees, and they built more houses. The robins stopped coming. They couldn't build their nests near our houses because there were no trees." "Now there are too many houses and too many roads. There are no places for the robins. They do come any more ." _ built the nests in the trees.
[ "Mr. Ellis", "Some people", "The robins", "Some dogs" ]
C. The robins
mmlu_train
mmlu_train_1771
Which conclusion is best supported by a tree-growth ring that is much narrower than the other growth rings?
[ "Crops grew well that year.", "One year was unusually dry.", "The tree was planted long ago.", "The area used to have more trees." ]
B. One year was unusually dry.
mmlu_train
mmlu_train_96151
what kind of changes in an environment will cause a plant to adapt to survive?
[ "new laws", "lack of light", "new poetry", "loud music" ]
B. lack of light
mmlu_train
aquarat_11042
The averge score of a cricketer for ten matches is 45 runs. If the average for the first six matches is 48. Then find the average for the last four matches?
[ "43.25", "43", "38", "40.5", "36" ]
D. 40.5
aquarat
aquarat_32727
Two passenger trains start at the same hour in the day from two different stations and move towards each other at the rate of 20 kmph and 21 kmph respectively. When they meet, it is found that one train has traveled 60 km more than the other one. The distance between the two stations is?
[ "288", "492", "877", "278", "178" ]
B. 492
aquarat
mmlu_train_74902
If your mother wants to tell you something, she uses words. Birds can not talk as we do. But some birds can make sounds to warn their young of danger. They have their own way to make the young birds know or do certain things. The jackdaw is a kind of blackbird that lives in Europe. Jackdaws live together in groups. Young jackdaws do not know their enemies. When the older jackdaw sees a dog, it makes a loud rattling sound. The younger birds know this sound means an enemy is nearby. The sound warns them to know their enemies. If a young jackdaw is in a dangerous place, a jackdaw parent flies over him from behind. The parent bird flies low over the younger bird's back. The parent's tail feathers move quickly from side to side. It is trying to say, "Follow me." At the same time, the parent calls out, "Key-aw, Key-aw." The parent means, "Fly home with me." Young jackdaws do not have to learn what certain sounds mean. They know the meanings of these sounds from the time they are _ . A young jackdaw understands its parents _ .
[ "after it is taught", "before it is hatched", "by practicing sounds", "as soon as it is hatched" ]
D. as soon as it is hatched
mmlu_train
aquarat_12438
If a and b are prime numbers, which of the following CANNOT be the value of ab?
[ "9", "14", "21", "23", "25" ]
D. 23
aquarat
aquarat_20974
Sum of two numbers is 30. Two times of the first exceeds by 10 from the three times of the other. Then the numbers will be?
[ "14, 16", "16, 14", "18, 12", "12, 18", "17, 13" ]
B. 16, 14
aquarat
mmlu_train_36918
Apple a day may poison children Children who eat an apple or pear a day may be exceeding the pesticide safety limit because of remains on the fruit,according to research. Using data of the British Department of Environment on pesticides on fruit collected from supermarkets,scientists thought that each day some children would get a poisonous level of pesticides. The research,published on Sunday,says the government repeatedly claims that the levels of pesticide are safe because,instead of measuring individual apples, researchers buy 10,crush them and take an average reading to see if they are safe. This is the internationally agreed method of checking remains. But government figures show that the pesticide is not averagely spread across the batch ,and one or two apples could contain 90% or more of the pesticide in the batch. It used mathematical modeling to measure exposure to pesticides for children aged between 18 months and four years old. The pesticides involved can destroy children's hormones and some are suspected of causing cancer. The good news for British fruit growers is that samples grown in this country had lower _ level than imported fruit,so buying home-produced fruit will reduce the danger,said Emily Diamand,one of the Earth's senior food researchers and one of the authors of the report. The internationally agreed method of checking remains is to buy _ .
[ "two apples,crush them and take an average reading to see if they are safe", "five apples,crush them and test to see if they are safe", "ten apples,crush them and take an average reading to see if they are safe", "eighty apples,and then test them by crushing" ]
C. ten apples,crush them and take an average reading to see if they are safe
mmlu_train
aquarat_11274
Running at their respective constant rate, machine X takes 2 days longer to produce w widgets than machines Y. AT these rates, if the two machines together produce 5w/4 widgets in 3 days, how many days would it take machine X alone to produce 6w widgets.
[ "4", "36", "8", "10", "12" ]
B. 36
aquarat
aquarat_3829
A sum of money amounts to Rs. 9800 after 5 years and Rs. 12005 after 8 years at the same rate of simple interest. The rate of interest per annum is
[ "6%", "5%", "12%", "10%", "8%" ]
C. 12%
aquarat
mmlu_train_22804
Several times each year the Queen gives afternoon tea parties at which guests are served tiny cakes filled with cream from her own cows. Cakes and sandwiches are brought in by footmen, yet you never see the Queen touch a thing. She simply sits beside a big silver plate, pouring cups of tea for everyone and carefully avoiding the cakes. At cocktail parties the Queen moves from group to group, chatting informally, and manages to make one glass of diet drink to last an entire evening. Tours abroad are difficult because hosts seem to believe the warmth of their welcome must be shown with wonderful state banquets . But the Queen has perfected the art of appearing to enjoy her meal without actually eating much. During one visit to the Pacific islands ofprefix = st1 /Tonga, a specially-prepared dinner was arranged in a hut made of wood and bamboo leaves. Deep holes were dug in the ground, filled with hot stones and baby pigs, and the pigs were slowly baked over several days. The Queen looked uneasily at her plate when she discovered a whole roast pig was her serving. Then she became uneasy when a turkey, some meat, bananas and an apple were also carried in for each guest. So she depended on her old favorite trick of talking with her host., King Tupou IV, carrying on a warm conversation. At the same time she pushed her food around her plate and only ate a piece of turkey and some fruit. Reporters traveling with her have noted that the Queen will sometimes seem so carried away by a foreign leader's political chat that she simply never has time to finish a meal before it is time to get up and make her speech. She will lift her fork to swallow a mouthful, then put it down again to make another point, leaving almost all of her meal untouched. The main idea of the passage is about _ .
[ "the Queen's favorite food", "the Queen's tours abroad", "how the Queen keeps her diet during her tours", "the Queen's trouble with a foreign leader" ]
C. how the Queen keeps her diet during her tours
mmlu_train
mmlu_train_31692
At one time it was the dream of many little girls to become a nurse. Today, however, America is facing its worst nurse shortage since World War I. Recently about 2, 000, 000 nurses are needed and 60 percent of all hospitals in the US have shortages large enough to threaten the quality of care provided. The demand for nurses spreads widely throughout the nursing field. What has become of these women in white? The answer lies in not one but several causes. One possibility is the fact that women have greater career options . In the past, women who chose to work outside the home had two basic choices: nursing or teaching. Today, more women than ever are in the work force, but their options have greatly increased. There are women doctors, lawyers, firefighters and police officers. In fact, women today are found in nearly every field of work. Nursing has been left behind, as women move on to jobs with higher pay and greater status . A woman or man in the nursing field is often looked down upon as "merely a nurse". Teachers may be also at fault. Many high school students are actually being persuaded to keep away from nursing, told by teachers that they are "too bright to be a nurse". Americans are living longer than ever and requiring more medical attention. In fact, the number of elderly patients has almost doubled in the past twenty years. Obviously a larger population requires more nurses. AIDS and other diseases have caused more and more people to need nursing care. Usually fatal diseases mean long drawn-out hospital stay, that is to say, more nurses are needed to care for these patients. It is said that the demand for nurses will be doubled in the coming ten years. Which of the following is true according to the passage?
[ "High school students think themselves too bright to be nurses.", "Women in the US have greater career choice than in other countries.", "Nursing used to be an ideal job for women in the US at one time.", "60 percent of hospitals in the world are faced with nurse shortage." ]
C. Nursing used to be an ideal job for women in the US at one time.
mmlu_train
m1_pref_110
The training loss of the 1-nearest neighbor classifier is always zero.
[ "TRUE", "FALSE" ]
A. TRUE
m1_pref
mmlu_train_81472
It's getting hotter and hotter outside. Summer is already here! Summer means high temperature, more outdoor activities and all kinds of fruit and vegetables. How can we stay fit in this exciting season? Here are some good suggestions: Eat and drink properly What is healthy to eat in summer? Fresh and light food. Fish can be a good choice. It can keep your body energetic and help fight against the burning sun. Another good choice is colorful fruit and vegetables.They not only _ our eyes, but are full of healthy chemicals ( ) .Tomatoes can help protect your skin against sunburn. Blueberries are good for your brain and eyes. The more color,the better! With all those summertime activities you will be thirsty. What to drink ? Water. Water has zero calories ( ) and is the perfect drink to stop your thirst ( ) . Try not to drink too many energy drinks, sports drinks and soda drinks which have lots of sugar and caffeine ( ) in them. Stay active and cool Summer is a great season to enjoy outdoor activities and play. It s also a goodtime to lose weight. If you are lucky enough to be near a body of water, try water sports like swimming, surfing, water skiing and so on. These sports keep you cool and active at the same time. You'll have no problem beating the heat and keeping fit as well. Be careful of the sunshine. Summer allows us more chances to get outside, but it also means more possibilities to get burnt by the sunshine. If you are going outside, keep away from the sun when it's the strongest--usually between 11 a.m. and 3 p.m. If you have to stay in the sun for a long time, sun cream ( ) ,a big hat and a long - sleeve jacket will be necessary. Which of the following is NOT right?
[ "Water sports can help you feel cool and active in summer.", "You d better not go outside from 12 a.m. to 2 p.m. in summer.", "Energy drinks are better than water to stop thirst.", "Summer is a good time to lose weight." ]
C. Energy drinks are better than water to stop thirst.
mmlu_train
mmlu_train_21161
Short people, studies have shown , are more likely to have a stroke , suffer from high blood pressures and heart disease and be bullied in school . Now, researchers report that short people--at least in the past--were also more likely to die at a younger age than their taller peers. Their study, published in the Journal of Epidemiology and Community Health , found that short bones have something to do with short life for more than 1,000 years. The conclusion was based on 490 sets of adult skeletal remains from an archaeological site in northeastern England , YC dating from the 9th century to about 1850 . About 55% of men and 73% of women died before the age of 45, and 39% of men and 56% of women died before age 30. The risk of death before age 30 declined as bone length increased. "This study provides evidence from an archaeological sample that long bone length is connected with age at death--those with smaller bones tend to die younger," according to Dr. D.J. Gunnell of the university of Bristol in the UK and colleagues . While it is not clear why short stature might be linked to earlier death , the researchers point out that height is _ of childhood nutrition, which may have long-lasting effect on health . "Mechanism for height-mortality associations in the past may differ from those today , for example , short stature may have increased the risk of death in childbirth and this may explain the higher risk of premature mortality in women," Gunnell and colleagues write . "However, short bones, it would appear, have always been a marker of a short life," the authors conclude. The topic in this passage is probably connected with
[ "space medicine", "sports medicine", "social medicine", "industrial medicine" ]
C. social medicine
mmlu_train
arc_easy_1160
A certain disease of the spinal cord can be passed on from a dog to its offspring. This disease can result in the dog's muscles becoming weak, leading to paralysis. This is an example of
[ "an infectious disease.", "a respiratory disease.", "an inherited disease.", "an environmental disease." ]
C. an inherited disease.
arc_easy
aquarat_48693
A man can row 6 kmph in still water. When the river is running at 1.2 kmph, it takes him 1 hour to row to a place and black. How far is the place?
[ "2.87", "2.88", "2.8", "2.86", "2.81" ]
B. 2.88
aquarat
aquarat_7556
A store purchased a pair of pants for $210 and was selling it at a price that equaled the purchase price of the pants plus a markup that was 25 percent of the selling price. After some time a store owner decided to decrease the selling price by 20 percent. What was the store's gross profit on this sale?
[ "$14", "$2", "$10", "$6", "$8" ]
A. $14
aquarat
mmlu_train_52903
More and more Americans are showing an interest in healthy and locally-produced food. As the interest increases, raising chickens has been gaining popularity in some American cities. "Look, we get three eggs this time." Collecting eggs is a daily pleasure for the Hurst family. Naomi Hurst says her family started to raise chickens in back of their home in Maryland a month ago. "We have wanted to try having backyard chickens for a couple years now. And really just didn't have the time to build my own coop(;) and look out where to buy chickens. And then we met Rent a Coop," said Naomi Hurst. Rent a Coop is a chicken rental business. Tyler Phillips launched the company with a partner 18 months ago. It comes with a mobile coop on wheels, two egg-laying hens, feed, bedding, water bowl, feed bowl, and our 24-hour chicken hotline. You can call with any questions. The price is 185 dollars for four weeks. After the four weeks passed, individuals can extend the rental agreement, return everything or purchase the animals and supplies. Tyler Phillips designs and makes the coops. He says he wants to do as little damage as possible to the environment. "We always try to have as many recycled materials as possible. And I want the coops to be safe for kids. I want the chickens to be comfortable and they have access to the grass while being inside the coop. I want it to be easily movable, light weight," he said. Some cities require people have large pieces of land, if they want to raise farm animals. Others require an agreement with neighbors, limit the number of chickens, or, even ban the birds. Tyler Phillips expects that would change as interest in small poultry coops grows. "I see cities around the D. C. area changing laws almost monthly and different cities will change the law to being prochicken . That is happening all around the United States," he said, He believes that there will be chicken rental businesses in most American cities within five years. We can learn from the passage that _ .
[ "you can enjoy the Rent a Coop service after 18 months", "you can search online for any questions related to raising chickens", "you can pay for keeping the supplies and the chickens for ever", "you can pay 185 dollars a week for renting things to raise the chickens" ]
C. you can pay for keeping the supplies and the chickens for ever
mmlu_train
mmlu_train_76891
There are all kinds of food in the world. Some people like the Chinese food. Firstly, the Chinese food has a lot of fruit and green vegetables. It has little sugar and fat. Secondly, the Chinese food is very delicious and has many dishes. So Chinese people can keep fit and have white teeth. However, some people enjoy the western food. Now many people, especially the workers in companies , are too busy to have lunch slowly so the western food meets their need and they can eat quickly. And the food is not too bad, too. It is a great pleasure to try eating a different style of food. In my opinion, I like the Chinese food more than the western food. First of all I'm a Chinese and used to Chinese food, it can keep us healthy. On the other hand, the western food is high in fat, sugar and salt. If you eat too much these food and don't take enough exercise, you'll get fat easily. The western food is too expensive and "not good value for money". If you eat too much western food and _ ,you'll get fat easily.
[ "don't take enough exercise", "don't take swimming lessons", "drink too much water", "take enough sleep" ]
A. don't take enough exercise
mmlu_train
aquarat_12958
If n is a non-negative integer such that 6^n is a divisor of 5,178,791, what is the value of n^6 – 6^n?
[ "- 11", "- 1", "0", "1", "11" ]
B. - 1
aquarat
arc_easy_1557
Which of the following statements best explains how the decomposition of plant and animal matter helps to form rich soils?
[ "Decomposition adds silt to soil.", "Decomposition adds water to soil.", "Decomposition adds oxygen to soil.", "Decomposition adds nutrients to soil." ]
D. Decomposition adds nutrients to soil.
arc_easy
aquarat_26204
Kanul spent $5000 in buying raw materials, $200 in buying machinery and 30% of the total amount he had as cash with him. What was the total amount?
[ "$7456.00", "$7500.55", "$7428.57", "$7852.56", "$7864.00" ]
C. $7428.57
aquarat
mmlu_train_93401
Which example shows a new substance being formed?
[ "a candle burning", "a shoelace being tied", "a pipe being cut in half", "a block of ice melting" ]
A. a candle burning
mmlu_train
mmlu_train_45255
Promised yourself to quit smoking in the new year, but just can't stop lighting up? You're not alone, with an Australian survey showing that only 3 percent of smokers who made such resolutions stuck with them. An online poll of just over 1,000 people, conducted ahead of the launch of a video game designed to help smokers quit, showed one in four Australians made New Year's resolutions to quit ---- but more than half went back on their word within a week.Some 15 percent lit up within hours of making the pledge, the survey showed, The research revealed that seven out of ten smokers have tried to kick the habit at some point. "Our research shows that the majority of smokers in Australia want to quit but are struggling to stick to their resolution.For most people, the desire to stop smoking is not enough, "Edward Fong, general manager of Ubisoft, the videogame manufacturer selling the anti-- smoking software, said in a statement. According to the survey, Australian smokers light up an average of 13.8 cigarettes every day or 5,037 cigarettes a year.There are currently 2.63 million smokers in Australia, which equates to 16 percent of the population over the age of 18, with women on average making more attempts to quit than men.The World Health Organization says smoking kills about 4 million people each year, causing a quarter of deaths related to heart disease.The organization estimates that by 2030, more than 8 million people will die from tobacco - related causes each year, mainly in developing countries. Where do you suppose this passage is probably taken from?
[ "Health magazine.", "Evening paper.", "Office Report.", "Science-Journal." ]
A. Health magazine.
mmlu_train
m1_pref_76
When using bootstrapping in Random Forests, the number of different data items used to construct a single tree is:
[ "Smaller than the size of the training data set with high probability", "Of order square root of the size of the training set with high probability", "The same as the size of the training data set", "Depends on the outcome of the sampling process, and can be both smaller or larger than the training set" ]
A. Smaller than the size of the training data set with high probability
m1_pref
mmlu_train_97051
A person who forgot to bring water with them will likely die of dehydration
[ "on a lake", "in a river", "in a house", "on earth's satellite" ]
D. on earth's satellite
mmlu_train
mmlu_train_95789
What does a squirrel not eat?
[ "plants", "seeds", "fruits", "animals" ]
D. animals
mmlu_train
aquarat_15039
Charlie, a painter, has 9 jars of paint: 4 are violet, 2 are yellow, and the rest are brown. Charlie will combine 3 jars of paint into a new container to make a new colour, which he will name according to the following conditions: 1) C1, if the paint contains 2 jars of brown paint and no violet paint 2) C2, if the paint contains 3 jars of brown paint. 3) J1, if the paint contains at least 2 jars of violet paint 4) J2, if the paint contains exactly 1 jar of violet paint What is the probability that the new colour will be a shade of J (J1 or J2)?
[ "37/42", "35/42", "37/21", "74/21", "42/37" ]
A. 37/42
aquarat
aquarat_6312
The probability that A speaks truth is 3/5 and that of B speaking truth is 3/7. What is the probability that they agree in stating the same fact?
[ "17/35", "17/39", "17/36", "17/33", "17/32" ]
A. 17/35
aquarat