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aquarat_4823
A toy store sells small, medium, large, and super-large toy trucks in each of the colors red, blue, black, green, and yellow. The store has an equal number of trucks of each possible color-size combination. If Paul wants a medium, red truck and his mother will randomly select one the trucks in the store, what is the probability that the truck she selects will have at least one of the two features Paul wants?
[ "2/5", "7/15", "13/25", "17/25", "19/30" ]
A. 2/5
aquarat
aquarat_18242
An outlet pipe empties a tank which is full in 5 hours. If the inlet pipe is kept open, which lets water in at the rate of 8 litres/min then outlet pipe would take 3 hours longer. Find the capacity of the tank.
[ "8600 litres", "200 litres", "12800 litres", "6400 litres", "13200 litres" ]
D. 6400 litres
aquarat
mmlu_train_94786
Which characteristic is common to all reptile species?
[ "endothermic (warm-blooded)", "slimy skin", "ectothermic (cold-blooded)", "hairy skin" ]
C. ectothermic (cold-blooded)
mmlu_train
aquarat_27635
The perimeter of an equilateral triangle is 60. If one of the sides of the equilateral triangle is the side of an isosceles triangle of perimeter 55, then how long is the base of isosceles triangle?
[ "5", "10", "15", "20", "25" ]
C. 15
aquarat
aquarat_52633
Three 6 faced dice are thrown together. The probability that exactly two dice show the same number on them is
[ "5/18", "5/12", "5/19", "5/15", "5/11" ]
B. 5/12
aquarat
aquarat_47960
Average of five numbers is -10, and the sum of three of the numbers is 16, wat is the average of the other 2 numbers?
[ "-33", "34", "-34", "35", "33" ]
A. -33
aquarat
aquarat_37613
calculate the time required to become sum 2 times of itself at rate of 10%.
[ "5year", "15year", "10year", "8year", "12year" ]
C. 10year
aquarat
mmlu_train_47869
The marine environment is fascinating to study and work in due to its beauty, richness, and complexity. It covers three quarters of the surface of the Earth, yet we know more detail about the surface of Mars. In the past, it was seen as both an inexhaustible resource and a bottomless sink for our wastes. Yet the increasing pressures of overpopulation, pollution and the threat to our natural environment mean that there is an increasing need for scientists who can understand how it all works, how it affects us, and how we are affecting it from global warming through to the smallest plankton. From local issues to global concerns, we now know that the marine environment is inextricably linked to our lives, and to our future survival. It is an area where much remains to be discovered, and where only a multidisciplinary approach can cover the breadth of issues to be confronted. This is the approach taken on our Marine Environmental Science degree course. This course takes a multi-disciplinary approach to explore and understand the marine environment. After an initial grounding in basic science, optional choices are available in specialist topics such as marine ecosystems and pollution, coastal navigation and oceanography, among others. Our new harbor side marine laboratory is used for some of the specialist lectures, laboratory and project work, while a week's residential field course in the Isle of Man provides training to prepare for the research project conducted in your final year. There is an optional trip to Belize in the final year to study tropical marine environments. The present environment of the Earth forces the experts and scholars to study _ .
[ "the relationship between people's actions and natural environment", "the relationship between people's actions and pollution", "the relationship between people's actions and overpopulation", "the relationship between people's actions and plankton" ]
A. the relationship between people's actions and natural environment
mmlu_train
mmlu_train_60136
Every year mobile phones develop. Imagining what they will look like and be able to do in 2020 is really a challenge. To help, experts have outlined three major mobile trends that they believe will have become reality by then. Our phones will be so smart in 10 years' time that they'll know everything about our situation and warn us when something needs our attention. This is the top prediction of both Nokia and Google. They predict that our cars and home appliances will be able to communicate with our mobile. For example, fridges will tell your mobile to tell you to pick up milk on the way back from work. While driving, your mobile will suggest that you take a different route because there's a road accident up ahead. The second trend is in gesture-based controls. People who know the iPhone's touch-sensitive screen are already familiar with the technology. It translates hand movements into actions on-screen. But gestural communications will make the phone more convenient to use and may completely replace touchpads. According to industry insiders, the most immediate step forward in gestural technology will be in voice recognition. It's believed voice recognition technology will speed up communications. It is quicker to speak than type. Eventually, phone screens will disappear. The third major development will change our understanding of a mobile phone. From a single phone, the mobile will be developed into multi-part devices. It is opposite to the current trend in which mobile phones are combining the functions of cameras, music players and game consoles. The prediction is based on the idea that the world will become more wireless and all these--cameras, music players and game consoles--will be wirelessly connected. Mobile phones won't need to contain these devices because users will be able to control them wirelessly through their phones. From the text, we can learn that the future mobile phones will _ .
[ "drive cars for us", "be controlled by the users' voices", "be controlled by home appliances", "be very big together with separated multiple parts" ]
B. be controlled by the users' voices
mmlu_train
mmlu_train_60537
What we eat, when we eat or how we eat is usually considered to be an everyday eating habit. Good eating habits are very important for our health. Most of us would rather eat sweets and ice-cream than meat and rice. Sweets and ice-cream are not bad for the stomach if we eat them at the end of a meal. But we should also know that if we eat them before a meal, they will spoil our appetite . It is a good habit for us to eat our meal at the same time each day. When we feel hungry, it is a sign that our body needs a good supply. When we feel angry or excited, we may not want to eat. A long time ago, in England some judges used to decide whether a man was telling the truth by giving him some dry bread. If he could not swallow the bread, it was a sign that he wasn't telling the truth. He was telling lies. Although this seems very strange and rather foolish, it is indeed an excellent way of finding out the truth. A man who is worrying about something has difficulty in swallowing anything dry. Because he is worrying, he loses his appetite and does not want to eat. It is good to eat sweets and ice-cream _ .
[ "when we are hungry", "when we want to", "after the meal", "before the meal" ]
C. after the meal
mmlu_train
aquarat_8764
If two dice are thrown together, the probability of getting an even number on one die and an odd number on the other is?
[ "1/4", "1/2", "1/8", "1/0", "1/1" ]
B. 1/2
aquarat
arc_easy_1181
Residential construction is expanding in Florida. The expansion has caused fragmentation of habitats. One of the results of the increased construction is a decrease in the number of large predators such as the coyote, black bear, and panther. Which will be the most immediate local result of this fragmentation?
[ "decrease in middle-sized predators", "large predators will become extinct", "increase in population of prey species", "increase in population of top carnivores" ]
C. increase in population of prey species
arc_easy
mmlu_train_77733
Most people like bikes. Perhaps you ride a bike to school. Riding a bike can be great of fun.Do you know how to ride a bike safely? Careful boys and girls learn to ride their bikes well before they go out on the road.How can you tell whether you are a good _ If you can ride a bike in a straight line,you can ride well .If you can't ,you should practice riding a in a safe place. To be safe on a bike, you need to use both hands and both feet. Keep your feet on the pedals and your hands on the handle bars. You know that your bike is only for one person. It's not safe to carry anyone with you. Keep yourself safe when you ride on a bike.Watch where you are going all times. Before you learn to ride your bike well, you can't _ .
[ "go to school", "ride on the bike", "practise riding", "carry your things" ]
B. ride on the bike
mmlu_train
mmlu_train_81814
Bill Gates, the founder of Microsoft and one of the richest people in the world, is now making efforts to reinvent the toilet. Gates has donated a big part of his wealth to charity. Now his charitable organization, the Bill & Melinda Gates Foundation, is looking for future toilets that can improve the living conditions of millions of people. The flush toilet we use today was invented in 1775. While it works well in getting rid of our waste, it also uses a lot of water and needs a costly sewage system . Besides, it's not necessarily practical for the developing world. In some developing countries, lack of toilets leads to poor hygiene ,and _ could kill people. According to the World Health Organization, 1.5 million children under the age of five die each year because of hygiene problems. Last year, the Gates Foundation gave money to eight universities around the world and asked them to start inventing the toilet of tomorrow: a toilet that uses little or no water is cheap and easy to fix, and is safe and hygienic. At the " Reinvent the Toilet Fair " competition recently held in Seattle, twenty-eight designs were displayed. The winners, from the California Institute of Technology , were awarded a $ 100,000 prize by the Gates Foundation. "We couldn't be happier with the response that we've gotten," Bill Gates said at the event. Many of the new designs would not only greatly improve hygiene in the developing world, but also help change the dependence on traditional flush toilets in developed nations, he said. Which would be the best title for the passage?
[ "Bill Gates of Microsoft", "Revolution of the toilet", "Fair of the toilet", "Type of the toilet" ]
B. Revolution of the toilet
mmlu_train
aquarat_8314
On my sister's birthday, she was 132 cm in height, having grown 10% since the year before. How tall was she the previous year?
[ "130 cm", "126 cm", "120 cm", "116 cm", "112 cm" ]
C. 120 cm
aquarat
aquarat_48008
The interest on a certain deposit at 4.5% p.a. is Rs. 202.50 in one year. How much will the additional interest in one year be on the same deposit at 5% p.a.?
[ "Rs. 20.25", "Rs. 22.50", "Rs. 25", "Rs. 42.75", "None" ]
B. Rs. 22.50
aquarat
mmlu_train_73286
Antifreeze is a liquid that is added to water to keep it from freezing. When water freezes and turns to ice,it expands .The force of water expanding is so great that it will break the hardest metal.Water is used in car engines to keep them cool while they run,and if this water is allowed to freeze in winter it can break the iron block of the engine.That is why antifreeze is necessary. Water freezes at 0degC;the usual kind of antifreeze will not freeze until the temperature is-40degC.A mixture of five parts of water and four parts of antifreeze will prevent freezing at-18degC;four parts of water and five parts of antifreeze reduce this to -22degC. Alcohol is a kind of good antifreeze,but when the air is running it becomes hot and the alcohol boils away,so it must be changed very often.Most people use antifreeze that does not boil away when the engine is running.There are several chemicals that do this.One of the most popular is called ethylene glycol. people use _ to keep car engines cool.
[ "antifreeze", "water", "alcohol", "ethylene glycol." ]
B. water
mmlu_train
aquarat_12605
which of the following is the square of an prime number?
[ "144", "529", "576", "441", "256" ]
B. 529
aquarat
aquarat_40295
A, B and C can do a work in 9 days, 8 days and 12 days respectively. In how many days can all three of them working together, complete the work?
[ "3 3/23", "3 3/28", "2 2/0", "2 2/2", "2 2/1" ]
A. 3 3/23
aquarat
mmlu_train_52860
Astronomers say they are on the point of finding planets like Earth orbiting other stars, which is a key step in determining if we are alone in the universe. A top NASA official and other leading scientists say that within four or five years they should discover the first Earth-like planet where life could develop, or may have already. A planet close to the size of Earth could even be found sometime this year. At the annual American Astronomical Society conference this week, each discovery involving so-called "exoplanets" --those outside our solar system -- pointed to the same conclusion:Quiet planets like Earth where life could develop probably are plentiful. NASA's Dew Kepler telescope and a lot of new research from the suddenly hot and competitive exoplanet field caused noticeable buzz at the meeting.Scientists are talking about being at "an incredible special place in history" and closer to answering the question. "Are we alone? For the first time, there's an optimism that sometime in our lifetimes we're going to _ that," said Simon Worden,an astronomer who heads NASA's Ames Research Center. "If I were a betting man, which I am, I would bet we're not alone." "These are big questions that reflect upon the meaning of the human race in the universe," the director of the Vatican Observatory, the Rev. Jose Funes, said Wednesday in an interview at this week's conference. Worden told The Associated Press: "I would certainly expect in the next four or five years we'd have an Earth-sized planet in the habitable zone." What is very important in determining if we are alone in the universe?
[ "Finding an Earth-like planet", "Orbiting other stars.", "Developing new telescopes", "Finding more exoplanets." ]
A. Finding an Earth-like planet
mmlu_train
mmlu_train_56531
The latest fashion in the kitchen is the food steamer.All the stores are selling them;everyone wants one.Steaming is one of the simplest and healthiest ways of cooking food.However,that cooking time is usually longer than with other methods.In case you're thinking of buying a steamer,I've done a survey about the steamers available on the market to help you decide which will suit you best. Folding Steamer The simplest and least expensive is the folding stainless-steel version. Advantages:This is a good,basic design which sits inside a variety of different shapes of pans with the water under it;a ring in the centre allows for easy lifting and it's easy to clean. Disadvantages:It only holds small dishes.Also,if you put too much water in the pan,it will boil up through the vegetables and they will be watery.If you put too little water in and let it get dry,you will burn the pan and get strange-smelling vegetables. Steaming Pan This is a three-layered black Teflon-coated version with a lid and two double-handled steamers,which sits on the oven ring.The brand I bought is calledNutritious Living. Advantages:This is an excellent steamer, lightweight,easy to clean,and of all the steamers I've tried,this cooks the fastest.Fish and chicken can be cooked on the bottom with rice or vegetables on the top.It's easier to store. Disadvantages:Water can boil away until the pan is dry,but if you make sure you fill the pan up to the suggested level and do not overcook the food,this should not happen.You cannot see the food cooking from the top.It doesn't supply a dish for cooking rice. For serious users of steamers,I recommend having one of each version.If you just want to try it,get the folding stainless-steel type. Which of the following is true about the folding steamers?
[ "They are cheap and easy to use.", "They are difficult to clean.", "They can hold all kinds of dishes.", "You can put little water in the pan." ]
A. They are cheap and easy to use.
mmlu_train
aquarat_47040
A box contains nine bulbs out of which 4 are defective. If four bulbs are chosen at random, find the probability that exactly three bulbs are good.
[ "20/68", "20/63", "20/69", "20/64", "20/62" ]
B. 20/63
aquarat
mmlu_train_64963
The introduction to Music Bibliography Site Welcome to the introduction to Music Bibliography Site. In the site Friedheim Library will establish Music Bibliography Course. This year four sections of this course will be offered: two sections in fall and two sections in spring. Time and Place Section 1: Tues. & Thurs. 9:30---10:20 a.m. (Room 214) Section 2: Wed. & Fri. 4:30---5:20 p.m. (Room 116) The goals of Music Bibliography To build a tool box of music reference sources To write an article with footnotes/endnotes and a bibliography about a major musical work. Note: The Music Bibliography Site serves all the teachers and students of the Peabody Conservatory of Music. ID card is required. If you are a student with a disability for which you require accommodations , please contact Dr. Eileen Soskin, Associtate Dean for Academic Affairs, the Peabody Conservatory of the Johns Hopkins University at 410-659-8100, extension 4405, at website esoskin@peabody.jhu.edu, or Ms Peggy Hayeslip, University Coordinator of Disability Services on the Homewood Campus of the Johns Hopkins University at 410-516-6225, at website phayeslip@jhu.edu to discuss reasonable and appropriate accommodations. This year four sections of this course will be offered _ .
[ "in spring and autumn", "in summer and winter", "in spring and summer", "in autumn and winter" ]
A. in spring and autumn
mmlu_train
aquarat_1498
The distance from the x-axis to point P is half the distance from the y-axis to point P. If the coordinates of P are (x,-4), how many units is P from the y-axis?
[ "2", "4", "8", "10", "12" ]
C. 8
aquarat
mmlu_train_27157
Consumers at the Whale Inside Dark Restaurant are led by a waiter with night - vision Goggles . Inside Dark Restaurant in prefix = st1 /Beijing, a table of 30 diners was getting quarrelsome."I'm touching your head!"said one, like a talkative child. "Who just said that?"another replied. Such voices floated across the 90-plus-seat restaurant, but no one could see who was talking, except the waiters, who were equipped with military-grade night-vision goggles. In the new conceptual dining, restaurants are turning off the lights to focus attention on the food. The trend seems to have started inZurichand has since spread all over the world, with diners sitting in _ rooms and, lately, being served by waiters in night-vision goggles. The idea is that by depriving one sense (sight), other senses are heightened. Darkness has other benefits. ''Chinese people tend to be shy,'' said Chen Long, who owns Whale Inside Dark, which opened in January. ''People have found it easy to break the ice here.'' The first dark restaurant, which opened inZurichin 1999, had a simple intention. The goal ''was creating jobs for the blind and handicapped people,'' said the manager. The concept has been popular in Paris, London,Sydneyand elsewhere, offering new variations on sight deprivation, by which people can experience a lot in a completely dark condition. In Beijing, the Whale Inside Dark Restaurant is not only about heightening the sense of taste, but lowering social inhibitions . It is popular with Internet daters, who met on matchmaking Web sites that are spreading throughout China. Diner for two is about 225 yuan, or $29 at 7.76 yuan to the dollar. Eating in the dark is not without its troubles. Instead of family-style dining, food is served on single-serving plates. When each dish arrives, the server guides your hand to the plate and offers helpful tips like, ''This course is eaten with a spoon.'' The style seems to be working . ''People feel a lot more comfortable when they can't be seen by others,'' said Mr. Chen, who is opening a second branch in Shang-hai, ''Couples get to know each other without seeing other's faces.'' The advantages of the dark restaurant include the following except_.
[ "lowering social inhibitions", "heightening the sense of taste", "breaking the ice easily for some shy persons", "becoming an Internet daters' centre" ]
D. becoming an Internet daters' centre
mmlu_train
aquarat_25450
5 x 1.6 - 2 x 1.4/1.3 = ?
[ "3", "0", "5", "4", "2" ]
D. 4
aquarat
aquarat_53644
Dacid obtained 96, 95, 82, 97 and 95 marks (out of 100) in English, Mathematics, Physics, Chemistry and Biology. What are his average marks?
[ "79", "93", "88", "88", "75" ]
B. 93
aquarat
mmlu_train_93101
A wind turbine primarily uses which type of energy?
[ "nuclear", "thermal", "chemical", "mechanical" ]
D. mechanical
mmlu_train
mmlu_train_59271
When Harvard was founded in 1636, there were no other colleges in the American colonies, and it would become the model for many of those that followed. When it began requiring applicants to take a test known as the SAT in 1935, Harvard started another trend. Two years ago, after it announced an aggressive new financial-aid policy, it helped push social class to the center of the national debate over higher education and forced two of its main competitors, Stanford and Yale, to follow its lead. Last week. Harvard began to make another effort to affect higher education in its image, its president, Derek Bok, announced that the college would abandon its early admissions program, which for decades has allowed high school seniors to apply in October and get an answer yes, no or maybe - in December, shortly before the regular deadline for applications. Harvard officials argue that the program is beneficial to rich students who don't need to compare financial-aid offers from various colleges. After the announcement, many people within education urged other colleges to take a similar step. "We're thrilled," said Laurie Kobick, a college counselor at Thomas Jefferson High School for Science and Technology in Alexandria, Va. "I think it's going to make admissions better in so many different ways. It will indeed go a small way toward leveling the field among applicants. Of course, it will also have an effect on colleges, and the biggest winner will almost certainly be Harvard. a fact that may prevent many other colleges - perhaps all of them - from following Hazard this time. Because any college that does so will risk losing some of its best applicants." By abandoning early admissions program, Harvard wants _ .
[ "to attract the public's attention", "to influence higher education in its own way", "to save money spent in attracting students", "to allow its competitors to admit more students" ]
B. to influence higher education in its own way
mmlu_train
aquarat_10469
What is the smallest integer n for which 25^n > 5^12 ?
[ "6", "7", "8", "9", "10" ]
B. 7
aquarat
mmlu_train_80969
Good afternoon! I'm Alice. My last name is Smith. I'm in a red jacket. I'm in Xingfu Middle School. My phone number is 569-2679. This is Cindy Brown. She is my good friend. She is in a yellow jacket. She is in Xingfu Middle School, too. What's her phone number? It's 865-2397. What's Cindy's last name?
[ "Smith.", "Brown.", "Alice.", "Cindy." ]
B. Brown.
mmlu_train
mmlu_train_95246
Birds eat nuts, but sometimes they eat
[ "wolves", "bugs", "dogs", "cats" ]
B. bugs
mmlu_train
mmlu_train_21242
Look and feel better in 30 days, guaranteed! Our proven workout system helps you reach your goals fast. Many Americans are overweight for lack of physical activity. Many are struggling to lose weight, but most give up just within days. If you've struggled with diets and workout routines, only to feel like you aren't getting anywhere, our gym is for you! Take a moment to read this page to find out what we can do for you. Let us help you Reach your fitness goals quickly and safely Work out in a comfortable environment Look and feel great Get the results you've been looking for Have you tried dieting and working out, only to be let down? Do you have trouble pulling yourself to the gym every day? Our program is designed for the "average Joe or Jane" to be able to lose weight and keep it off, with a combination of nutrition, motivation, and fitness. Our fitness method Our workout system will ensure that you lose weight and build muscles quickly and safely. We have developed a workout that targets all the right muscle groups, while at the same time burning unwanted fat. Our experienced trainers can help you with nutrition in between workouts to allow you to reach your goals faster. Nutrition is a big part of getting fit; don't overlook it! If working out on your own hasn't produced the type of results you want, that's why we're here. Join today! We charge $500 for each membership, but people who join our gym today can get a 20 percent discount. Those who join in the following week can get a 10 percent discount. For more information, please click here. Many Americans fail to lose weight probably because _ .
[ "they lack confidence", "they do exercise alone", "they are under great pressure", "they don't get enough exercise" ]
D. they don't get enough exercise
mmlu_train
aquarat_34320
Replace the ? with an approximate value in the following equation? 95.921 + 35.421 × 5.2 + ? = 705.621
[ "791.9", "783.9", "793.9", "973.9", "733.9" ]
C. 793.9
aquarat
aquarat_24052
Find avrg speed if a man travels at speed of 24km/hr up and 36km/hr dawn at an altitude of 200m.
[ "25.8", "26.8", "27.8", "28.8", "29.8" ]
D. 28.8
aquarat
mmlu_train_54124
Indoor public spaces such as restaurants, workplaces, hospitals and public transport are supposed _ from Jan 9 in China. On that day five years ago, China approved the World Health Organization's Framework Convention on Tobacco Control. However with the deadline days away, the government still hasn't come up with a clear message for the ban. An editorial from "China Daily" urges China to speed up its effort to ban smoking in public indoors. Referring to numbers from the Chinese Center for Disease Control and Prevention, the articles says if China fails to reduce tobacco consumption, the number of people killed by cigarettes will double by 2025 and three times by 2050, which is about 1.2 million now every year. This would cut the productivity of the work force and places a heavy burden on the country's healthcare system. The article says China has let an opportunity slip to change these statistics for the better. The momentum , however was not strong enough to make the country's public places smoke free. The editorial suggests that China should strengthen its effort to tax heavily smokers as there are no national regulations on banning smoking in public areas. Which of the following is NOT true according to the passage?_.
[ "the number of people killed by cigarettes will be about 2.5 million by 2025.", "The government still hasn't put forward a clear message for the ban.", "China succeeds in reducing tobacco consumption.", "China should strengthen its effort to impose restrictions on smokers." ]
C. China succeeds in reducing tobacco consumption.
mmlu_train
aquarat_39709
What is the present worth of Rs. 165 due in 2 years at 5% simple interest per annum?
[ "288", "266", "120", "150", "6123" ]
D. 150
aquarat
arc_easy_665
One way that students can help conserve natural resources at school is by
[ "recycling aluminum cans.", "emptying waste baskets.", "wearing warmer clothes.", "eating all of their lunch." ]
A. recycling aluminum cans.
arc_easy
mmlu_train_27250
Why do human beings still risk their lives under ground and doing one of the dirtiest and most dangerous jobs in the world? It's an increasingly urgent question, given the recent mining accidents in Sago. W. Va. and Huntington, Utah. A small group of engineers and robotics experts look forward to a day in the not-too-distant future when robots and other technology do most of the dangerous mining work. Robotic technology, in particular, holds much promise, McAteer says, especially when it comes to mapping mines and rescuing trapped miners--the special operations of the mining industry. One of the first mining robots was developed five years ago at Canegie-Mellon University's Robotics Institute. It was called Groundhog. It used lasers to "see" in dark tunnels and map abandoned mines - some of the most dangerous work in the business The latest design is called Cave Crawler. It's a bit smaller than Grondhog, and even more advanced. It can take photos and video and has more sensors that can discover the presence of dangerous gases. The robot has a real sense of logic, which is hard to believe. If it comes across a thing in the way it gets confused. It has to think through the process and where to go next, and sometimes it _ just like a real person. The greatest problem, though, is cost. The money of the earliest research project was provided by the government, but that money has dried up, and it's not clear where future money will come from. Partly for that reason, and partly because of advances in safely, mining is not nearly as dangerous as it was in the past. Since 1990,fatalities have declined by 67 percent and injuries by 51 percent, according to the National Mining Association. Some experts predict that robots in the mines will serve much of the same function that they do in the automotive industry. The robot do the most boring and dangerous jobs, but don't eliminate the need for human workers. The latest robot is more advanced than Groundhog mainly because _ .
[ "it's a bit smaller", "it can map abandoned mines", "it can see in the dark tunnel", "it has a real sense of logic" ]
D. it has a real sense of logic
mmlu_train
aquarat_20615
The average of seven numbers is 18. The average of first three numbers is 14 and the average of last three numbers is 19. What is the middle number?
[ "42", "57", "27", "29", "None of these" ]
C. 27
aquarat
arc_easy_886
Sharpening a pencil and tearing paper are examples of physical changes. Which statement describes why these are physical changes?
[ "There is a change in how the objects are used.", "There is a change in the appearance of the objects.", "There is a change in the materials from which the objects are made.", "There is a change in both the appearance of the objects and the materials from which they are made." ]
B. There is a change in the appearance of the objects.
arc_easy
m1_pref_119
What is the output of the following block of Python code? (one answer) \\ \verb|my_string = `computational'| \\ \verb|print(my_string[1])|\\ \verb|print(my_string[3:5])| \vspace{0.25cm}
[ "c\\\\mpu", "c\\\\mp", "o\\\\put", "o\\\\pu" ]
D. o\\pu
m1_pref
arc_easy_1982
How do traits of animals such as ear shape, nose shape, and hair color most often get passed to offspring?
[ "sexual reproduction", "asexual reproduction", "adaptation", "instinct" ]
A. sexual reproduction
arc_easy
mmlu_train_11796
Scientists have created a"human-like robot"that can dance and do the housework. "Mahru" has been developed to imitate humans and can move its lips, eyes and eyebrows. The machine can also move its upper and lower body freely and automatically stop itself when walking. In addition, it has been programmed to give out two kinds of pleasant smells to match its emotions. The 1.5m tall robot was produced by researchers at the Korea Institute of Science and Technology(KIST)and is the first South Korean-developed machine of its kind. "Mahru will open the way for the commercial use of humanoid robots doing housework," You Bum-Jae, leader of the development researchers team, said, "Mahru can dance while walking on its legs and is able to work in place of a human." Through an advanced action capture system, Mahru can follow a variety of human movements and is able to move its hands freely enough to cope with any obstacles that may get in his way when walking. State-funded KIST showed the robot during a presentation at its headquarters in Seoul. People were treated to an entertaining show which saw the robot show off the full range of its skills, a series of dance moves. The research team added that they had designed another "Mahru", this time with sensors allowing it to distinguish between faces and objects. The showing of "Mahru" came a week after researchers in Japan said they had created the "most human-like" robot in the world. A team at robotics department of Osaka University in Japan said that "robotgirl", Replee R-l, looks, moves and interacts like a human, and has silicone skin that feels almost human to the touch. Mahru made by KIST can do the following things EXCEPT _ .
[ "express certain feelings through smells", "move its body freely", "stop automatically when walking", "dance with other human-like robots" ]
D. dance with other human-like robots
mmlu_train
aquarat_22582
Divide $2000 among B,C in the ratio 4:16. How many $ that C get?
[ "$1200", "$1400", "$1600", "$1800", "$2000" ]
C. $1600
aquarat
aquarat_14032
Two goods trains each 500 m long are running in opposite directions on parallel tracks. Their speeds are 45 km/hr and 30 km/hr respectively. Find the time taken by the slower train to pass the driver of the faster one?
[ "28 sec", "19 sec", "48 sec", "18 sec", "38 sec" ]
C. 48 sec
aquarat
mmlu_train_50707
At Dallas/Fort Worth Airport, the lights are controlled by sensors that measure sunlight. They dim immediately when it's sunny and brighten when a passing cloud blocks the sun. A wall of windows at a University of Pennsylvania engineering building has built-in blinds controlled by a computer program that follows the sun's path. Buildings are getting smarter and the next generation of building materials is expected to do even more. Windows could catch the sun's energy to heat water. Sensors that measure the carbon dioxide breathed out by people in a room could determine whether the air conditioning needs to be turned up. Many new materials and technology have been designed in the last 15 years. They are now being used in a wave of buildings designed to save as much energy as possible. They include old ideas, like "green roofs", where a belt of plants on a roof helps the building keep heat in winter and stay cool in summer, and new ideas, like special coating for windows that lets light in, but keeps heat out. As technologies such as sensors become cheaper, their uses spread. The elevators at Seven World Trade Center, which is under construction in New York, use a system that groups people traveling to nearby floors into the same elevator, thus saving elevator stops. People who work in the building will enter it by swiping ID cards that will tell the elevators their floor, readouts will then tell them which elevator to use. The building also has windows with a coating that blocks heat while letting in light. More new building materials and technology are in development. A Philadelphia building firm is now working on "smart wrap" that uses tiny solar collectors to catch the sun's energy and transmitters as wide as a human hair to move it. They are expected to change the face of the construction industry in the next ten years or so. What might be the most suitable title for the text?
[ "Buildings Are Becoming Smarter", "Buildings Are Getting More Sunlight", "Buildings Are Lacking in Much Energy", "Buildings Are Using Cheaper Materials" ]
A. Buildings Are Becoming Smarter
mmlu_train
mmlu_train_82527
Ancient humans were afraid of the sight of comets . Many cultures believed that comets were messages sent by gods, and people thought these messages were warning signs for bad behavior. But today science and technology give us a better understanding of comets. Last week, comet Ison ended its million-year-long journey as it flew straight toward the sun, melting most of the comet. It was hoped that comet Ison would survive this trip around the sun. Because once it got near Earth, it would have produced a great show of lights for us. In ancient times, the coming of comet Ison might have scared people. However, now we can track a comet's journey in our solar system. We can also study what they're made of. There is even a project to launch a spacecraft onto a comet to study them further. Although from the sky they look like great giant fireballs, comets are a collection of gas, ice, dust and small rocks. As a comet goes into our solar system, the sun's solar winds blow some of the dust and gas away, giving the comet a tail. The average size of comets is about 10 kilometers in diameter . But amazingly, their tails can be 150 kilometers long! Comet Ison's diameter was about 5 kilometers. Today, people don't fear comets as much as they did before. Western countries have even developed and old tradition. When people see a comet or meteoroid shooting across the sky, they call it a shooting star, People who get the chance to see one get to make a wish. It is a tradition that lives on today. In ancient times, people thought comets were _ .
[ "warning signs sent by gods", "lucky signs for good behavior", "great shows of lights", "flying suns" ]
A. warning signs sent by gods
mmlu_train
aquarat_34574
A boy rides his bicycle 20km at an average speed of 20km/hr and again travels 30km at an average speed of 10km/hr. His average speed for the entire trip is approximately?
[ "10.6km/hr", "8.9km/hr", "15.5km/hr", "12.5km/hr", "15km/hr" ]
D. 12.5km/hr
aquarat
aquarat_10623
Of the c students at a certain college, x are studying French and y are studying German. If w are studying both French and German, which of the following expresses the number of students at the college not studying either French or German ?
[ "c + w- x- y", "c - w- x- y", "z- w - x + y", "w + x + y- z", "w - x - y - z" ]
A. c + w- x- y
aquarat
mmlu_train_58591
Noise pollution in cities is causing out health to suffer, according to the World Health Organization. Recently, researchers at the Free University of Brussels in Beigium have developed an applocation: NoiseTube. It allows everyone who downloads it the ability to measure the amount of noise they are exposed to by transforming their smart phone into a sound level meter. NoiseTube works by recording sound levels and GPS locations. Once launched the app shows decibel levels of green or red depending on the level of noise. That information is then sent to the NoiseTube server via the Internet where a "noise map" is produced and then made available to the user. Since its launch, the app has been popular with community groups who want to monitor their own noise levels. According to D'hondt of the Noise Tube project, these groups don't think that city produced noise maps give an adequate interpretation of the level of noise they're experiencing. City produced noise maps are based on statistical models involving very few actual measurements. NoiseTube on the other hand gives a detailed account of the level of noise experienced at a specific time and location. "Ten people walking the same area from 9 to 10 am every day for one week can make a valid and detailed map for an area of a couple of blocks," D'Hondt said. "It's reasonable effort by the community groups to produce these maps, and with it they can go to the authorities and have real evidence about what they're experiencing." So far these sorts of noise maps have been produced for a number of European cities. The app has been downloaded by 10,000 people with 2,700 people registered on the NoiseTube website. This passage is most likely to be found in _ .
[ "a geograph textbook", "a piece of newspaper", "a reserch report", "a story-book" ]
B. a piece of newspaper
mmlu_train
arc_easy_1907
A female dog is having puppies. She has black fur, brown eyes, and a curly tail. She can sit, bark, and roll over on command. Which set of traits can the female dog's puppies inherit?
[ "brown eyes, black fur", "fur, roll over on command", "brown eyes, sit on command", "bark on command, curly tail" ]
A. brown eyes, black fur
arc_easy
aquarat_36335
A committee has 5 men and 6 women. What are the number of ways of selecting 2 men and 3 women from the given committee?
[ "170", "200", "626", "207", "227" ]
B. 200
aquarat
aquarat_31474
The sequence S is defined as Sn = (n + 1)! for all integers n >= 1. For example, S3 = 4! = (4)(3)(2)(1). Which of the following is equivalent to the difference between S100 and S99?
[ "101!", "100!", "99^2", "100^2", "" ]
D. 100^2 (99!)
aquarat
aquarat_13740
Two pipes can fill a tank in 18 minutes and 6 minutes. An outlet pipe can empty the tank in 45 minutes. If all the pipes are opened when the tank is empty, then how many minutes will it take to fill the tank?
[ "1/15", "1/6", "1/11", "1/10", "1/12" ]
B. 1/6
aquarat
arc_easy_370
A car runs out of fuel while traveling on a level road and eventually comes to a stop. Which of the following best explains why the car stops?
[ "Some of the energy of the car was lost to friction.", "Some of the energy of the car was destroyed.", "The amount of kinetic energy increased.", "The amount of useful energy increased." ]
A. Some of the energy of the car was lost to friction.
arc_easy
mmlu_train_65283
After the "Big Bang ",the earth was just a cloud of energetic dust. What it was to become was a mystery until the dust began to slowly combine into a ball moving around the sun. The problem was that the earth became violent because it was not clear whether the solid shape was to last or not. It exploded loudly with fire and rock, which were in time to produce the water vapor, carbon dioxide, oxygen, nitrogen and other gases, which were to make the earth's atmosphere. As the earth cooled down, water began to appear on its surface. Nobody knew that it was going to be different from other planets going round the sun. Water had already disappeared from planets like Mars or satellites like the moon, but it stayed on the earth. This is how the earth began to show its special qualities. Many people think that this was important for the beginning of life. It allowed the earth to dissolve harmful gases, which had become part of the earth's atmosphere, into the oceans and seas. That made it possible for life to begin to develop. What scientists think is that the earth was different because of the arrival of small plants growing in the water on its surface. Nobody understood that these plants were the start of many changes. They multiplied and filled the first oceans and seas with oxygen .This encouraged the development of early shellfish and all sorts of fish. Many millions of years later the first green plants began to appear on land. Scientists believe that taking carbon dioxide from the atmosphere and filling the air with oxygen helped life to develop. Later land animals appeared. Some were insects. Others, called amphibians, were able to live on land as well as in the sea. When the plants grew into forests, reptiles appeared for the first time. They produced young generally by laying eggs. Later, some huge animals, called dinosaurs, developed, They laid eggs too. They became the most important animals on the earth for millions of years. But when they disappeared, mammals became more important. They were the last group of animals and they were different because they produced their young from within their bodies. Small clever animals, now with hands and feet, appeared and spread all over the earth. They developed new methods of growing food, hunting and moving around. As time went by they covered the earth and have become the most important animals on the planet. But they are not taking care of the earth very well. They are putting too much carbon dioxide into the atmosphere, which prevents heat from escaping from the earth into space. The earth may become too hot for the lives on it. Whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved. What problem is caused by human beings?
[ "They exist everywhere on the earth.", "They cause global warming.", "They find new methods of growing crops.", "They enjoy hunting and fishing." ]
B. They cause global warming.
mmlu_train
mmlu_train_50634
Most people go to a doctor in their own town or suburb . But people in the Australian _ can't get to a doctor quickly. The nearest doctor is sometimes hundreds of kilometers away so they have to call him on a two-way radio. This special doctor is called the "flying doctor". He visits sick people by plane. When someone is very sick, the doctor has to fly to the person's home. His plane lands on a flat piece of ground near the person's house. Sometimes the doctor has to take the patient to hospital. Flying doctors take about 8,600 people to hospital each year. However, most of the time the person isn't very sick, and the doctor doesn't have to visit. He can give advice on the radio from the office at the flying doctor center. He can tell the patient to use some medicine from a special medicine chest . There is one of these chests in every home in the outback. Each bottle, tube and packet in the chest has a number. The doctor often says something like this," take two tablets from bottle 5 every four hours." Some people in the Australian outback can't get to a doctor quickly. Because _
[ "there are few doctors there", "the nearest doctor is sometimes very far away from them", "there is always heavy traffic on the road", "they don't want to see a doctor" ]
B. the nearest doctor is sometimes very far away from them
mmlu_train
aquarat_15591
Two isosceles Triangles have equal vertical angles and their areas are in the ratio 16:49. Find the ratio of their corresponding heights .
[ "4/5", "5/4", "3/2", "4/7", "2/3" ]
D. 4/7
aquarat
mmlu_train_33883
A lot of grown-ups worry that spending too much time playing video games isn't good for a kid's health. Now some doctors have noticed that kids who bring their hand-held game players to the hospital seem less worried about being there. These patients also seem to experience less pain when they are concentrating on a superhero adventure or a car race. At the Johns Hopkins Children's Center in Maryland, young patients are finding hospital visits easier to deal with, thanks to a test program called the Hospital-based On-line Pediatric Environment (HOPE). Patients in HOPE have a life-threatening condition where their kidneys no longer filter wastes from their blood. To get their blood cleaned, these kids must be hooked up to dialysis machines at the hospital three times a week, for at least three hours each time. HOPE allows kids to play online sports, racing, and adventure games with each other. Eventually they will be able to connect with kids in other hospitals who are suffering from the same problem. "We want to use the power of the Internet to bring together kids who feel that they are separated by their illness, and let them know that they are not alone," said Arun Mathews, the doctor who heads the program. He loves video games himself and got the idea to connect kids all over the country. Many researchers elsewhere are testing video game programs that might help young patients. For example, nine-year-old Ben Duskin of San Francisco, who was struggling with cancer helped to design a video game where players get rid of cancer cells. That's all great news, because doctors already know that reducing pain and worry helps patients heal faster. How long will it take a patient to get his blood cleaned in a week?
[ "About 3 hours.", "About 6 hours.", "About 9 hours.", "About 21 hours." ]
C. About 9 hours.
mmlu_train
mmlu_train_20290
Vitamins are stored in foods we eat. The kids are udner great need of vitamins for growth. As they use their energy in playing, they need lots of vitamins. Children usually choose certain foods above the others and often do not eat those with important nutrients . Sothough the food they are eating is nutritious, it may not always provide all the nutrients the child needs. One nutrient can not balance the shortage of another. Foods like grains, vegetables, fruits and meats should be eaten daily, because different foods in the child's diet can balance against taking too much or too little of any nutrient. Kids grow slower in their childhood than when they were babies or when they develop into adults. Energy output is high, with hard paly perids that include plenty of running, jumping, and testing of new physical skills. So they need a lot of vitamins. Here are some important vitamins and their functions Vitamin D in milk helps your bones. Vitamin A in carrots helps you see at night. Vitamin C in oranges helps your body heal if you get a cut. B vitamins in leafy vegetables helps your body make protein . The children, who are suffering from a sickness called cystic fibrosis, lose vitamin A, D and E. These are main body-building vitamins. Therefore, vitamin supplements may be necessary. Blood tests will telll you whether a child needs vitamin supplements. If babies over nine months of age are receiving whole cow's milk, they'll need a daily vitamin C supplement till their diet provide enough vitamin C. Vitamin D is added to all milks so babies drinking them need no extra vitamin D. Children are greatly in need of vitamin C. If you are 18 years of age or younger, you should get 115 millgrams of vitamin C per day. Those over 19 should get 120 milligrams per day. The proper title for the passage is _ .
[ "Diets of all nutrients", "Vitamins for children", "Balance of daily diets", "Functions of vitamins" ]
B. Vitamins for children
mmlu_train
arc_easy_1326
Use The Periodic Table of the Elements and the information below to answer the question. Magnesium metal (Mg) is grayish-white in color and reacts actively with water. Fluorine (F2) is a greenish-yellow gas at room temperature and is a member of the halogen family. These two elements react to produce magnesium fluoride (MgF2), a chemical commonly used in making windows and lenses. How do the elements magnesium (Mg) and fluorine (F2) produce the compound magnesium fluoride (MgF2)?
[ "by nuclear connection", "by physically combining", "by magnetic connection", "by chemically combining" ]
D. by chemically combining
arc_easy
mmlu_train_66340
Do you always forget where you placed your keys or your purse? What was the name of the movie you saw last week? The major cause of your forgetfulness may be linked to what you store in your body, not in your short-term memory bank. Tests continue to show that people with enough Vitamin B-2 do well in memory exams. The "B" could stand for "brain", if you're one of many with limited instant recall. And the number one source of that vitamin is sunflower seeds. Even when you're sleeping or relaxing, your brain is still at work. Although it makes up just two percent of your total body weight, it uses up to 30 % of the calories you take in each day. For it to work properly, it must be fed. Even if you're not a breakfast eater, that meal is the best way to prepare your brain for the day. A quick and easy English _ with peanut and butter in it, a glass of milk, and an orange, might be what your brain may be asking you the first thing in the morning when you feel your head is in a fog. Having sunflower seeds and fruit between meals adds more muscle to that hungry, demanding organ. Vitamin B-1 also helps the memory, and that is found in eggs, meats and nuts. In Chinese culture, walnuts are known as the fruit for a long life because it is believed that they feed both the kidneys and the brain. And according to Chinese culture, if you keep those two important organs in good working order, you'll live longer. However forgetful you are, just keep in mind the letter "B", which will help you to "bear in mind almost everything" even on those days when life's challenges are sending you in a billion directions. What can we conclude from the passage?
[ "Two percent of our brain is still active when we are sleeping or relaxing.", "What we eat seems more important than what we learn in terms of memory.", "It doesn't make much difference to our brain whether we have breakfast or not.", "Life's challenges have no effect on our memory, if dealt with in a proper ...
B. What we eat seems more important than what we learn in terms of memory.
mmlu_train
aquarat_9229
Cook can divide his herd into 5 equal parts and also to 6 equal parts, but not to 9 equal parts. What could be the number of cows Cook has in his herd?
[ "336", "180", "120", "456", "155" ]
C. 120
aquarat
mmlu_train_93913
Which organisms form the base of all ecosystems?
[ "scavengers", "producers", "consumers", "decomposers" ]
B. producers
mmlu_train
arc_easy_493
Which biological process in mammals occurs largely due to cell division?
[ "healing", "respiration", "decomposition", "photosynthesis" ]
A. healing
arc_easy
arc_easy_2048
In the 1600s, Galileo Galilei studied the moons of Jupiter. What did Galileo do to make better observations?
[ "invented the microscope", "wrote a book about the planets", "created a model of the solar system", "made improvements to the telescope" ]
D. made improvements to the telescope
arc_easy
aquarat_53952
Richard's company has two types of machines, type R and type S. Operating at a constant rate, a machine of type R does a certain job in 30 hrs and a machine of type S does the same job in 15 hours. If the company used the same number of each type of machine to do the job in 2 hours, how many machines of type R were used?
[ "3", "4", "5", "9", "12" ]
C. 5
aquarat
mmlu_train_91628
What would you do if you had an accident in your daily life? It is important for you to get some knowledge about first aid in your daily life. If a person has an accident, he / she needs medical care before a doctor can be found. When you give first aid, you must know three things: First, when a person stops breathing , open his / her mouth to see if there is food in his / her mouth. Second, if a person cannot breathe, try to start his / her breathing at once, using a mouth-to-mouth way. Third, if a person is hurt badly, try to stop the bleeding at once. And then take him / her to a doctor, because if a person loses one third of his / her blood, he / she may be in great danger. Many accidents may happen at home, and everyone should know some first aid to deal with common injuries. When a person _ by an animal, wash the wound with cold running water before he / she is taken to see a doctor. When a person is burnt, wash and cool the area of the skin under the cold tap for a while, then put a piece of dry clean cloth over the burn. If a person is badly burnt, take him / her to the doctor. If a person cuts his / her finger, clean it and put a piece of clean paper round the cut. In the future we should learn more about first aid and try to spread it. How many steps should you pay attention to when you give first aid?
[ "Two.", "Three.", "Four.", "Five." ]
B. Three.
mmlu_train
aquarat_49717
Car E and Car Y traveled the same 80-mile route. If Car E took 2 hours and Car Y traveled at an average speed that was 50 percent faster than the average speed of Car E, how many hours did it take Car Y to travel the route?
[ "2/3", "1", "4/3", "8/5", "3" ]
C. 4/3
aquarat
aquarat_28643
Three partners A,B and C invest Rs.18000, Rs.22500 and Rs.27000 respectively in a business. If total profit is Rs.18750 then B's share is (in Rs.)
[ "10000", "6250", "5000", "7500", "8500" ]
B. 6250
aquarat
aquarat_44839
A positive integer n is a perfect number provided that the sum of all the positive factors of n, including 1 and n, is equal to 2n. What is the sum of the reciprocals of all the positive factors of the perfect number 28?
[ "1/4", "56/27", "2", "3", "4" ]
C. 2
aquarat
aquarat_211
A starts business with Rs.3500 and after 5 months, B joins with A as his partner. After a year, the profit is divided in the ratio 2 : 3. What is B’s contribution in the Capital ?
[ "24887", "20778", "23788", "9000", "2811" ]
D. 9000
aquarat
aquarat_41141
The area of a square is equal to five times the area of a rectangle of dimensions 125 cm * 64 cm. What is the perimeter of the square?
[ "767 cm", "800 cm", "266 cm", "181 cm", "188 cm" ]
B. 800 cm
aquarat
mmlu_train_67366
"You are what you eat," says the old saying. So how can we know what food is healthy? Unluckily, a lot of food that looks good may have pollution. Where is the pollution from? It has something to do with how people produce food: growing it on the farm, processing it in factories, and making it ready for you to eat. Here's what happens: Most farmers use chemicals to stop their crops from getting sick. Many of these chemicals remain in the food that you eat. Some people believe this may cause cancer. These chemicals may also pollute water and air, and kill animals and even people by accident. Most drinks are just flavored water . Every drink coming in plastic bottles which you then throw away means a waste. Sugary drinks make you fat. In the factories, much of what you eat and drink gets messed. Often things are put into food to make it delicious and look good but they might be harmful to people. And some food like meat often gets polluted by bacteria. What you can do: Try to get organic food. Organic food doesn't have any ingredients that are bad for the land, air or water. Don't eat processed food or drinks. Eat fresh food whenever you can and cook at home. Which of the following is NOT true?
[ "A lot of food that looks good isn't good.", "Organic food doesn't pollute the environment.", "Some ingredients in drinks may be bad for people's health.", "All the food has pollution." ]
D. All the food has pollution.
mmlu_train
aquarat_4628
If m=9^(x−1), then in terms of m, 3^(4x−1) must be which of the following?
[ "m/3", "9m", "27m^2", "m^2/3", "m^2/9" ]
C. 27m^2
aquarat
mmlu_train_38544
What is the color1 of the universe? Astronomers had not answered this question, until two months ago. That is when two American astronomers reported on their study of all the light in the universe. They said that the universe would appear to the human eye to be a light greenish color1, called turquoise . Karl Glazebrook and Ivan Baldry of Johns Hopkins University in Baltimore, Maryland, reported their finding in January. They presented the research at a meeting of the American Astronomical Society. They said that finding the color1 of the universe was not part of their serious scientific research. They did it for fun. However, earlier this month, the scientists admitted to making a mistake. They said their finding was much more color1ful than it should have been. They now say the light from our universe is closer to white. It is more like a milky or creamy white color1. Their study attempted to show what people might see if they could observe the universe from far away. The scientists found the average color1 by combining light from about two-hundred-thousand star systems. Their information came from an observatory in New South Wales, Australia. These scientists and color1 engineers attempted to reproduce the result. Mark Fairchild of the Rochester Institute of Technology in New York was the first person to identify a mistake. He discovered a mistake in the computer software program used by the Johns Hopkins scientists. When the mistake was corrected, the results changed. The new color1 of the universe is much less color1ful. It is very close to white. The scientists have apologized for the mistake. They are now working with the Rochester Institute of Technology to produce more images of the color1 of the universe. They also asked for suggestions for a name for the new color1 of the universe. The best title of the passage should be _ .
[ "Research made by two astronauts", "The color1 of the universe", "Mistakes made by scientists", "A mistake in the computer" ]
B. The color1 of the universe
mmlu_train
mmlu_train_53383
Science. And technology students in China and the US have a1ong way to go before they call develop a deep understanding of scientific reasoning, researchers have found. As part of a research to compare science education in China and the US,LeiBao, a professor from the Department of Physics of the Ohio State University, gave 5,760;freshmen in three US and four Chinese universities two tests to evaluate content knowledge and another to assess scientific reasoning |Though Chinese students did better than theirprefix = st1 /UScounterparts in the first two tests that Emphasized on learning facts, both groups "scored ly poorly" on the third test, designed to assess their ability on systematically explore a problem, the results showed. Lei Bao said that the finding challenges conventional wisdom,which holds that teaching science facts will improve students' reasoning ability."Our study shows that ,contrary to what many people would expect,even when students are thoroughly taught the facts,they don't necessarily develop the reasoning skills they need to succeed.''IBao said:'"Because students need both knowledge and reasoning, we need to explore teaching methods that target both." 'The current education systems and assessments of China and the US do not emphasize on deep understanding of scientific reasoning in the disciplines of science;technology, engineering and mathematics(STEM),the study concluded. Bao explained that reasoning is good skill for everyone to possess-not just scientists and engineers:The general public also need good reasoning skills in order to correctly interpret scientific findings and think rationally.STEM students need to _ scientific reasoning in order to handle open-ended real-world tasks in their future careers in science and engineering. How to boost scientific reasoning? The study suggests that educators must go beyond teaching science facts if they hope to boost students' reasoning ability.Bao points to inquiry-based leaning. where students work in groups,question teachers and design their own investigations.This teaching technique is growing in popularity worldwide. Based on the study, what will be done to improve students' reasoning ability?
[ "To improve teaching techniques.", "To better students' learning conditions.", "To teach students more science facts.", "To offer students more tests." ]
A. To improve teaching techniques.
mmlu_train
mmlu_train_79956
Five years ago, Rachel Lopez graduated from college with a degree in history. Today she works for a large software company. Now twenty-seven, Rachel takes classes twice a week after work. She is learning to use the computer program PowerPoint. "I enjoyed college, but my job doesn't use information I learned when I was doing my degree," Rachel says," This course is helping me to do my job better. In the future, I might go back to school and got an MBA. " In the past, when students graduated from college and got a job, they usually stopped studying. Today, lifelong learning is becoming more common. In the United Stated, people can return to school in their late twenties, thirties, or older to get a higher degree, such as a master's or Ph. D. Like Rachel many more are taking training courses to improve their workplace skills. With many classes now available through the Internet, it is easier for people to get degrees or training by distance learning. Mayumi Hosoya, who is forty, teaches Japanese at a community college in New York. "Next term, I'll be teaching some of my classes using the Internet. This is new for me," says Mayumi, "At the moment, I am taking a course to learn how to teach this way. " At the same time, Mayumi's seventy-year-old mother and father are taking a distance learning course in Art History. "We love the subject," says Mayumi's father, "and now we can study with people from all over the world. I never thought learning could be this much fun. " We know from the reading that _ .
[ "many people go to school to take teaching courses", "Rachel graduated when she was twenty", "Mayumi's teaching how to use the Internet now", "many students stopped studying when looking for jobs" ]
A. many people go to school to take teaching courses
mmlu_train
aquarat_28770
A two-digit number is such that the product of the digits is 8. When 18 is added to the number, then the digits are reversed. The number is:
[ "18", "24", "42", "81", "90" ]
B. 24
aquarat
aquarat_16433
In a police selections, the weight of Arun is marked as 64 kg instead of 48 kg. Find the percentage of correction required.
[ "30%", "25%", "24%", "29%", "34%" ]
B. 25%
aquarat
arc_easy_569
A metal spoon was left in a pot of boiling soup. The cook burned a finger by touching the spoon. Why did the finger get burned?
[ "The metal spoon chemically reacted with the cook's hand.", "The metal spoon conducted electricity to the cook's hand.", "The metal spoon conducted heat to the cook's hand.", "The metal spoon insulated the cook's hand." ]
C. The metal spoon conducted heat to the cook's hand.
arc_easy
aquarat_46033
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. 64.50, his capital is?
[ "24,602", "28,888", "25,800", "24,628", "24,6012" ]
C. 25,800
aquarat
mmlu_train_91002
Chocolate is one of the most popular foods in the world. Many people choose it as a birthday gift. When a child gets a box of chocolate as a gift, he may feel happy. It is popular among people, especially among children. Chocolate tastes nice. People eat chocolate candy, chocolate cake and chocolate cookies. They also drink hot chocolate. Chocolate is made from cocoa beans. Here are some interesting things about cocoa beans. In the past, the Mayas and the Aztecs used cocoa beans as money because they were small, easy to carry, and not easy to find. A turkey cost ninety cocoa beans and a small rabbit cost thirty cocoa beans. They also cooked the beans and mixed them with water. Sometimes they added corn or hot pepper. They did not add sugar. The drink was very expensive. Only rich people could buy it. There are some different kinds of foods. Which is not mentioned in the passage?
[ "chocolate candy", "chocolate cake", "chocolate cookies", "chocolate ice cream" ]
D. chocolate ice cream
mmlu_train
aquarat_24779
A trader bought a car at 20% discount on its original price. He sold it at a 40% increase on the price he bought it. What percent of profit did he make on the original price?
[ "72%", "82%", "12%", "22%", "42%" ]
C. 12%
aquarat
mmlu_train_8508
We have dreams almost every night. Do you ever notice the colors of your dreams? Do you dream in black and white or do you dream in yellow, red and green? New research suggests that the type of television you watched as a child has a great effect on the color of your dreams. While almost all people under 25 dream in color, thousands of people over 55, all of whom were brought up with black and white TV sets, often dream in monochrome . "It suggests there could be a critical period in our childhood when watching films has a big impact on the way dreams are formed", said Eva Murzyn, a psychology student at Dundee University in Britain who carried out the study. Research from 1915 through the 1950s suggested that the vast majority of dreams are in black and white. But the tide turned in the sixties, and later results suggested that up to 83 percent of dreams contain some color. Since this period also marked the transition between black-and-white film and TV and Technicolor ,an obvious explanation was that the media had been painting people's dreams. However, there weren't any firm conclusions. But now Miss Murzyn believes she has proven the link. She made a survey of more than 60 people, half of whom were over 55 and half of whom were under 25. She asked the volunteers to answer a questionnaire on the color of their dreams and their childhood exposure to film and TV. She then analyzed her own data. Only 4.4 percent of the under-25s' dreams were black and white. The over-55s who had had access to color TV and film during their childhood also reported a very low proportion of just 7.3 percent. But the over-55s who only had access to black-and -white media reported dreaming in black and white about a quarter of the time. Even though they would have spent only a few hours a day watching TV or films, their attention and emotion would have been heightened during this time, leaving a deeper imprint on their mind, Miss Murzyn told the New Scientist. "The crucial time is between three and ten when we all begin to have the ability to dream", she said. In which magazine can you find the article?
[ "New Scientist", "Psychology Analysis", "Aging Healthily", "TV And Film Reviews" ]
A. New Scientist
mmlu_train
mmlu_train_24262
Tens of thousands of smartphone applications are running ads from the overwhelming advertising networks that change smartphone settings and copy people's contact information without permission. Aggressive ad networks can disguise ads as text message notifications , and sometimes change browser settings and bookmarks. Often, the ads will upload your contacts list to the ad network's servers--- information that the ad network can then sell to marketers. Sounds scary? It's not a giant problem yet, but it's a growing one. As many as 5% of free mobile apps use an "aggressive" ad network to make money, according to Lookout, a San Francisco-based mobile security company. PhoneLiving was one of the most popular app developers to use these kinds of ad networks; their dozens of talking animal apps have been downloaded several million times. Later, PhoneLiving says it has mended its ways. The company admittedusing _ techniques to make money from its apps, but said it dropped those methods at the start of July because of bad reviews and declining downloads. The most popular type of apps that use aggressive ad networks are "Personalisation" apps, which include wallpapers. Comic and entertainment apps are also among the most likely to have rogue ad networks running behind the scenes. Like aggressive pop-ups on PCs, the bad software isn't easy to get rid of. Though the damage can typically be removed by deleting the app, it can be hard to tell which app is causing the problems. When developers create free mobile apps, they usually make money through ads displayed within the app. App makers don't usually tell people which ad network they are using, which makes it hard to avoid the known offenders. The best defense is to read reviews and avoid downloading apps that have attracted many complaints. What is an example of bad behavior by the annoying mobile ads?
[ "They change browser settings and bookmarks.", "They change people's calendar settings.", "They send scam text messages occasionally.", "They download free versions of games." ]
A. They change browser settings and bookmarks.
mmlu_train
mmlu_train_33854
More and more people are aware that an afternoon nap can do a body good. But there are still doubters out there. To help spread the power of the afternoon nap, we list some common misunderstandings about napping we still hear. Misunderstanding # 1 : Napping is only for the lazy. Fact: Around a third of American adults nap on the average day, and for good reason: A short nap can improve everything from alertness and memory to creativity and productivity . And none of these sounds like laziness to us! Misunderstanding # 2 : If I take a nap, I'll only wake up feeling worse. Fact: That weak feeling after you wake up from a nap is real (it even has a name: sleep inertia), but it's not a guarantee . How you feel after your nap is a factor of how long you sleep. Experts generally agree that a nap should last no longer than 30 minutes. "If it takes longer than 30 minutes, you end up in deep sleep. You're going into a stage of sleep where you find it very difficult to wake up." said sleep expert Michael J. Breus, Ph. D. Next time you're in the mood for a nap, set your alarm for 20 to 30 minutes, tops. Misunderstanding # 3 : You mustn't nap at work. Fact: In fact, in the office environment, we're all for catching a few winks during the workday. Some companies have even created special rooms for afternoon naps as more and more employers come around to the idea that a well-rested workforce is a more productive workforce. If your employer doesn't offer a place to lay your head, try to find an empty conference room where you can close the door and turn off the lights. Really want. You can also take a nap during your lunch break on a park bench or in your car. Misunderstanding # 4 : I'll be more productive if I just finish this task, rather than waste time sleeping. Fact: Yes, you'll be away from your desk if you spend 10 to 30 minutes sleeping. But you'll likely make up for that "wasted" time afterward. "My research shows that people feel tired after a long time of work during the day," Sara Mednick told Bloomberg Businessweek. "It's difficult to keep energetic and productive all day." However, a nap can leave you feeling refreshed and more ready to deal with the task at hand. How you feel after your nap is connected with _ .
[ "the way of sleep", "the place of sleep", "the environment of sleep", "the length of sleep" ]
D. the length of sleep
mmlu_train
arc_challenge_552
Which results in a chemical change?
[ "A student smells a flower.", "A teacher lights a candle.", "A student colors a paper blue.", "A teacher feels a rough cloth." ]
B. A teacher lights a candle.
arc_challenge
mmlu_train_57326
Q: I currently entered college in New York. Since English is not my first language, I sometimes ask a friend to read my essays to help fix the grammar and language. I believe I'm being graded mainly on my ideas, and my friend helps me get my ideas across better in English. Is this OK? -Mariana A: It's good that you want to succeed in your written work at college. Making use of available resources to help you succeed is a smart strategy . But while you may believe that your instructors don't care as much about how you write as they do about your ideas, that' s not a fair assumption. Certainly, your ideas are important. No matter how polished your writing is, it will not disguise a poorly expressed idea in a paper. But as a college student, being able to organize your thoughts clearly-whether you're speaking in class or writing a paper-is critical to show that you've mastered the material in each course. This does not mean you shouldn't ask others to review your written work before handing it in. That's OK. You should not, however, allow a friend or anyone else to rewrite parts of your papers for you. Instead, ask them to simply let you know about any parts of the paper that are unclear and need work. Many colleges have writing centers where tutors will work with you on your writing-without doing the work for you. Regardless of whether you consult with a friend or a tutor, the right thing is for you to talk to your instructors to ask their advice and let them know you plan to seek assistance with your writing. If you ask them in advance for guidance on what's appropriate and what's not for the written work they assign, that will allow you to be as transparent as possible about how you completed your _ -Professor Byron According to Pro. Byron, what's the most important in writing a paper?
[ "Professional advice.", "Polishing carefully.", "Organizing thoughts.", "Familiar materials." ]
C. Organizing thoughts.
mmlu_train
aquarat_33698
Ayesha's father was 34 years of age when she was born while her mother was 30 years old when her brother four years younger to her was born. What is the difference between the ages of her parents?
[ "6", "8", "5", "1", "2" ]
B. 8
aquarat
aquarat_39130
If pqr < 0 and qr > 0, which of the following must be positive?
[ "xy", "xz", "", "p", "xy" ]
C. (p^2) qr
aquarat
mmlu_train_30580
A device that stops drivers from falling asleep at the wheel is about to undergo testing at Department of Transport laboratories and could go on sale within 12 months. The system, called Driver Alert, aims to reduce deadly road accidents by 20% - 40% that are caused by tiredness. Airline pilots can also use it to reduce the 30% of all pilot-error accidents that are related to fatigue. Driver Alert is based on a computerized wristband. The device, worn by drivers or pilots, gives out a sound about every four minutes during a car journey. After each sound the driver must respond by squeezing the steering wheel. A sensor in the wristband detects this pressing action and measures the time between the sound the driver's response. Tiredness is directly related to a driver's response time. Usually, a watchful driver would take about 400 milliseconds to respond, but once that falls to more than 500 milliseconds, it suggests that the driver is getting sleepy. In such cases the device gives out more regular and louder sounds, showing that the driver should open a window or stop for a rest. If the driver's response continues to slow down, the sounds become more frequent until a nonstop alarm warns that the driver must stop as soon as possible. The device has been delivered to the department's laboratories for testing. If these tests, scheduled for six months' time, are successful, the makers will bring the product to market within about a year. When the driver gets sleepy while driving, Driver Alert _ .
[ "moves more regularly", "stops working properly", "opens the window for the driver", "sounds more frequently and loudly" ]
D. sounds more frequently and loudly
mmlu_train
mmlu_train_94389
Which are the best tools to use for growing and studying bacterial cultures?
[ "beakers", "Petri dishes", "microscopes", "graduated cylinders" ]
B. Petri dishes
mmlu_train
aquarat_24371
Walking with 4/5 of my usual speed, I miss the bus by 5 minutes. What is my usual time?
[ "145", "5617", "15", "20", "12" ]
D. 20
aquarat
arc_challenge_265
How did scientists arrive at the theory of plate tectonics?
[ "by determining the age of lava rising at ocean ridges", "by determining the composition of limestone deposits", "by determining the rate of weathering of mountain ranges", "by determining the type of sedimentary rock formed on land" ]
A. by determining the age of lava rising at ocean ridges
arc_challenge
arc_easy_1696
Which pair of items will repel each other?
[ "a positively-charged wool sock and a neutral plastic bag", "a neutral cotton sweater and a negatively-charged plastic pellet", "a negatively-charged balloon and a positively-charged piece of paper", "a negatively-charged plastic strip and a negatively-charged piece of cloth" ]
D. a negatively-charged plastic strip and a negatively-charged piece of cloth
arc_easy
arc_easy_1107
What causes a meteoroid to glow as it falls through the atmosphere of Earth?
[ "wind", "gravity", "friction", "sunlight" ]
C. friction
arc_easy
mmlu_train_88226
Whole Wheat Apple Pancake INGREDIENTS: 2 cups of whole wheat flour 1/2 teaspoon of salt 2 eggs 1/4 cup of vegetable oil 2 large apples 1 cup of butter DIRECTIONS: Stir the flour and salt in a large bowl. Pour eggs and oil in. Mix the apples in. Heat a large pan over a medium heat. Put a large teaspoon of batter onto the pan and cook until the batter is dry. Then flip the pancake and cook until it is brown on the other side. When both sides have a light brown color, the pancake is ready. Heat the butter over a medium heat and add it to the pancake. It makes the pancake taste more delicious. The passage tells us how to make _ .
[ "bread", "dumplings", "pancakes", "hamburgers" ]
C. pancakes
mmlu_train
m1_pref_283
Let $G$, be a valid generator matrix of dimensions $\mathbb F^{k imes n}$. Recall that ``valid'' means that $k \leq n$ and $ ext{rank}(G) = k$. Let $D_1 \in \mathbb F^{k imes k}$ and $D_2 \in \mathbb F^{n imes n}$ be diagonal matrices with non-zero diagonal elements. True or false: $D_1 \cdot G \cdot D_2$ is also a valid generator matrix.
[ "False", "True" ]
B. True
m1_pref