question stringlengths 1 5.01k | choices listlengths 4 4 | answer stringclasses 4
values | support stringlengths 0 3.68k | source stringclasses 3
values |
|---|---|---|---|---|
What events, resulting in death of over half of animal species, have occurred on earth at least five times in the past 540 million years? | [
"spontaneous mutations",
"mass extinctions",
"mass migrations",
"microevolutions"
] | B | Since life began on Earth, there have been several major mass extinctions. If you look closely at the geological time scale, you will find that at least five major mass extinctions have occurred in the past 540 million years. In each mass extinction, over 50% of animal species died. The total number of mass extinctions... | SCiQ_train |
Water that is lost through the skin through evaporation from the skin surface without overt sweating and from air expelled from the lungs is known as what? | [
"insensible water loss",
"dehydration",
"osmotic process",
"logical water loss"
] | A | 26.2 | Water Balance By the end of this section, you will be able to: • Explain how water levels in the body influence the thirst cycle • Identify the main route by which water leaves the body • Describe the role of ADH and its effect on body water levels • Define dehydration and identify common causes of dehydration O... | SCiQ_train |
Suresh started a business, investing Rs.18000. After 3 months and 4 months respectively, Rohan and Sudhir joined him with capitals of 12000 and 9000. At the end of the year the total profit was Rs.4048. What is the difference between Rohan’s and Sudhir’s share in the profit? | [
"s.352",
"s.368",
"s.362",
"s.350"
] | B | Suresh : Rohan : Sudhir
Ratio of their investments = 18000 × 12 : 12000 × 9 : 9000 × 8
= 6 : 3: 2
The difference between Rohan’s and Sudhir’s share = 1 share
:.i.e. = Rs. 4048 × 1/11 = Rs.368.
E | AquaRat_train |
As a snowball grows it will require | [
"a dog sled team to pull it",
"a stronger person to push it",
"a large vat of chocolate syrup to dump on it",
"a group of blind Eskimos to move it"
] | B | MMLU_train | |
Elephants have very strong legs.Their legs are like trees.They usually walk slowly because they are so big,but they walk very quietly. Wild elephants living in the jungle usually stay together in big families.Usually one old elephant leads them.The others follow their leader.They usually move about at night,looking fo... | [
"It may not remember you and walk away.",
"It may kick you,or do something to hurt you.",
"It may eat the food you give it.",
"It may let you take photos with it."
] | B | MMLU_train | |
adding salt to a solid decreases what? | [
"how much light it emits",
"how much sound it emits",
"the energy needed to harden",
"the speed it travels"
] | C | MMLU_train | |
2/3rd of the boys and 3/4th of the girls of a school participate in a function. If the no.of participating students is 550, out of which 150 are girls, what is the total no.of students in the school? | [
"800",
"500",
"1000",
"900"
] | A | Let total number of boys be x and total number of girls be y. y=400=>x = 600and^= I50=>y = 200 Now, x + y = 800
C | AquaRat_train |
A | [
"bacterial cell must perform all life functions",
"lung cell",
"flower cell",
"tail cell"
] | A | MMLU_train | |
Today, children start to use computers, smart phones and tablets from a very young age. Many parents and child experts believe that this is very wrong. They claim that early exposure to technology can make individuals lazy and distracted. That may be true, but there it is practically impossible to change the world we l... | [
"to make your smart phone closely attached",
"to update your information every day",
"to help you get your favorite reading materials",
"to help students learn their subjects easily"
] | D | MMLU_train | |
Tea worth Rs.126 per kg are mixed with a third variety in the ratio 1: 1 : 2. If the mixture is worth Rs.133 per kg, the price of the third variety per kg will be | [
"Rs.1700",
"None",
"Rs.169.50",
"Rs. 155.50"
] | D | Solution
Since first second varieties are mixed in equal proportions, so their average price = Rs.(126+135/2) = Rs.130.50
So, the mixture is formed by mixing two varieties, one at Rs. 130.50 per kg and the other at say, Rs. x per kg in the ratio 2 : 2, i.e., 1 : 1. We have to find x.
x-133/22.50 = 1 =› x - 133 = 22.5... | AquaRat_train |
Life in space will certainly take some getting used to!But the space station has been designed to keep the astronauts as comfortable as possible--the modules are roomy,bright,and kept at a constant 70 degrees Fahrenheit.It's important the crew members are comfortable because they'll be busy aboard the station.In a typ... | [
"clothing",
"entertainment",
"sleep",
"exercise"
] | B | MMLU_train | |
Sam the Squirrel found a basket
of pine cones one morning. He
decided that every day he would
double the number of pine cones in the basket in
the morning and eat 2 pine cones out of the
basket in the afternoon. At the end of the third
day, there were 34 pine cones in the basket.
How many pine cones were in the basket ... | [
"2",
"6",
"4",
"8"
] | B | We will work backwards to find how many pinecones there were initially.
3rd day:
At the end of the afternoon, Sam had 34.
At the beginning of the afternoon, he had 34 + 2 =36.
At the beginning of the morning, he had 36 ÷ 2 =18.
2nd day:
At the end of the afternoon, he had 18.
At the beginning of the afternoon, he had 1... | AquaRat_train |
2,600 has how many positive divisors? | [
"12",
"6",
"18",
"48"
] | D | By factorization, you can write 2600 as 2600=2^3*5^2*13^1.
Number of factors = (3+1)(2+1)(1+1)=24
ANSWER:E | AquaRat_train |
What type of charge does a neutron have? | [
"neutral or no charge",
"half charge",
"negative charge",
"positive charge"
] | A | three building blocks of most matter. (The third is the neutron, which is neutral, carrying no charge. ) Other charge-carrying particles are observed in cosmic rays and nuclear decay, and are created in particle accelerators. All but the electron and proton survive only a short time and are quite rare by comparison. | SCiQ_train |
Surgical teams accidentally leave clamps, sponges and other tools inside about 1,500 patients nationwide each year. The mistakes largely result not from surgeon tiredness, but from the stress arising from emergencies or complications discovered on the operating table, the researchers reported. The study found that eme... | [
"Surgical teams aren't to blame for the mistakes.",
"Some people never know there is something left inside their body.",
"Most mistakes happen because equipment isn't counted after the procedure.",
"Only some small objects may be left inside the patients."
] | B | MMLU_train | |
Find the 25% of Rs. 800. | [
"s. 80",
"s. 50",
"s. 100",
"s. 200"
] | D | Explanation :
25% of 800
=> 25/100 *800 = Rs. 200
Answer : B | AquaRat_train |
Car A leaves the airport at 8:00 am and travels at a constant rate of 40 km per hour. Car B leaves the airport at 8:15 am and travels in the same direction along the same highway at a constant rate of 46 km per hour. At what time will Car B be 11 km ahead of Car A? | [
"11:45 am",
"12:15 pm",
"11:15 am",
"10:45 am"
] | A | At 8:15 am, Car A will be 10 km ahead of Car B.
Car B travels at a rate 6 km per hour faster than Car A.
Car B needs to travel 21 km more than Car A in order to be 11 km ahead.
This will take 21 km/6 km per hour=3.5 hours.
Car B will be 11 km ahead at 11:45 am.
The answer is D. | AquaRat_train |
What do light emitters do to what you see? | [
"add frequencies",
"subtract frequencies",
"block frequencies",
"divide frequencies"
] | A | Discussions of colors can sometimes become confusing because of the difference between light emitters and light absorbers. Light absorbers, such as dyes and pigments, absorb frequencies from those that you see, while light emitters add frequencies to what you see. If I were to shine red light, green light, and blue lig... | SCiQ_train |
Mr. and Mrs. Su don't often go out in the evening, but today they go out for a walk after supper. They go to the park and have a good time there. On their way home, Mr. Su says to Mr. Su, "Look! A woman is running in the street and a man is running after her." Mr. Su says, "What's the matter? Let's go and help her." No... | [
"a woman",
"a man",
"a man and a woman",
"many people"
] | C | MMLU_train | |
What is the use of organisms preserved in sedimentary rock? | [
"clothing",
"water",
"food",
"fuel"
] | D | MMLU_train | |
John draws a card from a pack of cards. What is the probability that the card drawn is a card of black suit? | [
"4/8",
"3/78",
"2/3",
"1/2"
] | D | Explanation :
Total number of cards, n(S) = 52
Total number of black cards, n(E) = 26
P(E) =n(E)/n(S)=26/52=1/2
Answer: D | AquaRat_train |
What are the 3 types of tissues that modern plants have? | [
"sinuous , ground , and vascular",
"sturdy , ground , and vascular",
"dermal, ground, and vascular",
"cambrium, epidermis, and ground"
] | C | Modern plants have three different types of tissues. They are called dermal, ground, and vascular tissues. Each type of tissue has a different function. | SCiQ_train |
What organism is responsible for most decomposition in forest? | [
"fungi",
"bacteria",
"yeast",
"coral"
] | A | Most fungi are decomposers. They are the main decomposers in forests. Many fungi have symbiotic relationships with other species. | SCiQ_train |
What temperature scale is obtained by adding 273 degrees from the corresponding celsius temperature? | [
"ph scale",
"kelvin scale",
"whittle scale",
"seismic scale"
] | B | The Celsius scale is the standard SI temperature scale. It is equal to the Kelvin scale if you minus 273 from the Celsius reading. Water has a boiling point of and a freezing point of . | SCiQ_train |
Insects are arthropods in which class? | [
"xerophyte",
"lexapoda",
"trichina",
"hexapoda"
] | D | Insects are arthropods in the class Hexapoda. They are the most numerous organisms in the world. Most are terrestrial, and many are aerial. Insects have six legs and a pair of antennae for sensing chemicals. They also have several eyes and specialized mouthparts for feeding. Insects are the only invertebrates that can ... | SCiQ_train |
Fe for iron and pb for lead are examples of elements known since ancient times, which have symbols based on their name in what language? | [
"latin",
"spanish",
"italian",
"arabic"
] | A | The figure below shows the most commonly used form of the periodic table. Each square shows the chemical symbol of the element along with its name. Notice that several of the symbols seem to be unrelated to the name of the element: Fe for iron, Pb for lead, etc. Most of these are the elements that have been known since... | SCiQ_train |
If x = –2, what is the value of 4x^3? | [
"–24",
"–32",
"8",
"–8"
] | B | 4x^3 = 4(−2)34(−2)3 = 4 * - 8 = -32.
Answer is -32
ANSWER:A | AquaRat_train |
Eight Things a Burglar Won't Tell You Should you spend your money on a home security system? A look inside a burglar's mind might help you decide. 1. Of course I look familiar. I was here just last week cleaning your carpets, painting your shutters, or delivering your new refrigerator. 2. Hey, thanks for letting me us... | [
"kids' room",
"sock drawer",
"medicine cabinet",
"safe"
] | A | MMLU_train | |
A driver stopped his car on a street side to have a rest. When he sat in the seat and closed his eyes, a pedestrian came up and knocked at his window to ask the time. The driver opened his eyes and looked at his watch, "It is 8 o'clock." He said. Then he went to sleep again. But soon he woke up because a second pedes... | [
"wake him up",
"take his car",
"ask the time",
"buy his car"
] | C | MMLU_train | |
Some foods that humans eat, such as corn and peas, are actually seeds from plants. What best describes the role of humans in a food web containing these plants? | [
"a consumer",
"a decomposer",
"a producer",
"a scavenger"
] | A | MMLU_train | |
How many four-digit numbers that do not contain the digits 2, 3, 4, 5, 6, 7, or 8 are there? | [
"54",
"36",
"48",
"30"
] | A | The 1st digit can be filled up by the numbers: {1,9} = 2 ways
The 2nd digit can be filled up by the numbers: {0,1,9} = 3 ways
The 3rd digit can be filled up by the numbers: {0,1,9} = 3 ways
The 4th digit can be filled up by the numbers: {0,1,9} = 3 ways
The total number of such four-digit numbers is 2*3*3*3 = 54
The an... | AquaRat_train |
The best way to experience the Web,email,photos,video and other features. All of the builtin programs on iPad were designed from the ground up to take advantage of the large multitouch screen and advanced capabilities of iPad. And they work in any orientation. So you can do things with these programs that you can't do... | [
"a reseller",
"the Apple retail store",
"a shopping mall",
"the Apple online store"
] | A | MMLU_train | |
Beijing, April 2----Starting from this year, the Beijing Municipal Health Bureau will begin to promote a home medical service. With this service a medical team which is made up of a doctor, a nurse and a medical health worker will be sent to some communities in the city. They will set up a medical filing recorder for e... | [
"All communities in Beijing have started home medical service.",
"People in Beijing will not easily get ill.",
"Medical service in Beijing will be promoted greatly in the future.",
"The other cities in China should learn from Beijing."
] | C | MMLU_train | |
Budding and fission in annelids are examples of what type of reproduction? | [
"asexual",
"byproduct",
"sexual",
"hybrid"
] | A | Most annelids can reproduce both asexually and sexually. Asexual reproduction may occur by budding or fission. Sexual reproduction varies by species. Some species go through a larval stage before developing into adults. Other species grow to adult size without going through a larval stage. | SCiQ_train |
A trader has 1600 kg of sugar. He sells a part at 8% profit and the rest at 12% profit. If he gains 11% on the whole , find the quantity sold at 12%? | [
"1200",
"1500",
"1400",
"1000"
] | A | By rule of alligation,
% Profit by selling part1 % Profit by selling part2
8 12
Net % Profit
11
12 - 11 = 1 11 - 8 = 3
=> Quantity of part1 : Quantity of part2 = 1 : 3
Given that total quantity = 1600 kg
Hence, quantity of part2 (quantity sold at 12% profit)
=
1600
×
3
4
=1200
B) | AquaRat_train |
What is the largest cartilaginous fish? | [
"dolphin",
"blue whale",
"whale shark",
"sturgeon"
] | C | Mike Johnston. Whale sharks are the largest cartilaginous fish . CC BY 2.0. | SCiQ_train |
A began a business with Rs. 85,000. He was joined afterwards by B with Rs. 42,500. For how much period does B join, if the profits at the end of the year are divided in the ratio of 3 : 1? | [
"8 months",
"5 months",
"6 months",
"4 months"
] | A | Suppose B joined for x months. Then,
Then,(85000 x 12)/(42500 x x) = 3/1
x = 85000 x 12/42500 x 3 = 8.
So, B joined for 8 months.
Answer:D | AquaRat_train |
The other ammonium ions are changed into nitrogen gas by what? | [
"denitrifying bacteria",
"accompanying bacteria",
"fungi",
"fluctuations bacteria"
] | A | The other ammonium ions are changed into nitrogen gas by denitrifying bacteria. | SCiQ_train |
John lived with her mother when he was young. He didn't know who his father was. The woman did some washing for the rich and could buy only some bread for her son. So the boy was short and thin. One cold morning there was much snow in the streets. A car knocked the woman down and the policemen took her to the hospital.... | [
"he didn't like sports",
"his parents were short, too",
"he was often hungry when he was young",
"his mother never gave him food"
] | C | MMLU_train | |
Do you know how it is when you see someone yawn and you start yawning too? Or how hard it is to be among people laughing and not laugh yourself? Well, apparently it's because we have mirror neurons in our brains. Put simply, the existence of mirror neurons suggests that every time we see someone else do something, our... | [
"relate to human behavior and interaction",
"control human physical actions and feelings",
"result in bad behavior and social disorders",
"determine our knowledge and language abilities"
] | A | MMLU_train | |
How do bacteria reproduce? | [
"nuclear fission",
"sexual reproduction",
"binary fission",
"budding"
] | C | New mitochondria and chloroplasts are produced through a process similar to binary fission. Bacteria also reproduce through binary fission. | SCiQ_train |
In how many ways can the letters of a word 'ENGINEERING' be arranged such that vowels DO NOT together? | [
"263000",
"273000",
"283000",
"293000"
] | B | ENGINEERING
total 11 letters
E=3,N=3,G=2,I=2,R=1,
Total no. of ways = 11!/3!3!2!2! = 277200
when vowels come together = (EEEII)NNNGGR => 7!/3!2! * 5!/3!2! = 4200
No. of ways when vowels DO NOT together = 277200 - 4200 = 273000
ANSWER:C | AquaRat_train |
What natural destructive element cuts away at rock forming river valleys? | [
"sediment",
"water",
"lava",
"air"
] | B | Lactic acid fermentation converts the 3-carbon pyruvate to the 3-carbon lactic acid (C 3 H 6 O 3 ) (see Figure below ) and regenerates NAD + in the process, allowing glycolysis to continue to make ATP in low-oxygen conditions. Since there is a limited supply of NAD + available in any given cell, this electron acceptor ... | SCiQ_train |
Donna Ashlock, a 14-year-old girl from California, was very sick. She had a bad heart. "Donna needs a new heart," her doctor said, "she must have a new heart, or she will die soon." Felipe Carza, 15, was worried about Donna. Felipe was Donna's friend. He liked Donna very much. He liked her freckles, and he liked her sm... | [
"she had freckles",
"she was very sick",
"she would have a new heart",
"she had a sharp pain in her head"
] | B | MMLU_train | |
What type of matter often sinks into cracks between rocks? | [
"vapor",
"energy",
"liquid",
"algae"
] | C | SCiQ_train | |
The common cold is the world's most widespread illness, which is plagues that flesh receives. The most widespread fallacy of all is that colds are caused by cold. They are not. They are caused by viruses passing on from person to person. You catch a cold by coming into contact, directly or indirectly, with someone wh... | [
"The Eskimos do not suffer from colds all the time.",
"Colds are not caused by cold.",
"People suffer from colds just because they like to stay indoors.",
"A person may catch a cold by touching someone who already has one."
] | C | MMLU_train | |
Sometimes two or more distinct phenotypes can each have their advantages and be selected for by natural selection; this is known as what? | [
"shedding selection",
"multiplying selection",
"diversifying selection",
"extra selection"
] | C | Diversifying Selection Sometimes two or more distinct phenotypes can each have their advantages and be selected for by natural selection, while the intermediate phenotypes are, on average, less fit. Known as diversifying selection (Figure 19.8), this is seen in many populations of animals that have multiple male forms.... | SCiQ_train |
Which relationship is true? | [
"a soccer pitch slows the ball down via magic",
"a soccer pitch slows the ball down because it is wet",
"a soccer pitch slows the ball down because there is always wind",
"a soccer pitch slows the ball down via friction"
] | D | MMLU_train | |
It doesn't matter when or how much a person sleeps, but everyone needs some rest to stay alive.That's what all doctors thought, until they heard about Al Herpin.Al Herpin, it was said, never slept. Could this be true? The doctors decided to see this strange man themselves. Al Herpin was 90 years old when the doctors c... | [
"his mother's injury before he was born",
"that he had gradually got rid of the sleeping habit",
"his magnificent physical condition",
"that he hadn't got a bed"
] | A | MMLU_train | |
Excluding stoppages, the average speed of a bus is 50 km/hr and including stoppages, the average speed of the bus is 40 km/hr. For how many minutes does the bus stop per hour? | [
"16 min",
"12 min",
"18 min",
"26 min"
] | B | In 1hr, the bus covers 50 km without stoppages and 40 km with stoppages.
Stoppage time = time take to travel (50 - 40) km i.e 10 km at 50 km/hr.
stoppage time = 10/50 hrs
= 12 min
Answer: A | AquaRat_train |
"YOUR password has expired ," a message said on my screen, with instructions for changing it. Coming up with a new code doesn't seem like a big deal, unless you work at my company, where we have to change it monthly, using at least one uppercase character, one lowercase character, one symbol, and one number. Oh, t... | [
"Seeme@2",
"Dream4future",
"Visit$me",
"Stay@4ever"
] | D | MMLU_train | |
In a certain deck of cards, each card has a positive integer written on it. In a multiplication game, a child draws a card and multiples the integer on the card by the next larger integer. If each possible product is between 25 and 200, then the least and greatest integers on the card could be | [
"3 and 15",
"5 and 13",
"4 and 14",
"5 and 14"
] | B | There child draws one number then multiplies that number by the number above it. The number must be more than 25 and less than 200.
x * (x+1)
Answer gives us choices of 3,4 and 5 (JUST ABOVE 25)
3*(3+1) =12 <- WRONG
4*(4+1) =20 <- WRONG
5*(5+1)=30 <-CORRECT AS IT IS ABOVE 25
Answer gives us choices 13,14,15 and 20 (BEL... | AquaRat_train |
What unit are atomic radii typically measured in? | [
"sporozoans",
"powers",
"radons",
"picometers"
] | D | Atomic radii have been measured for elements. The units for atomic radii are picometers, equal to 10 -12 meters. As an example, the internuclear distance between the two hydrogen atoms in an H 2 molecule is measured to be 74 pm. Therefore, the atomic radius of a hydrogen atom is . | SCiQ_train |
From a pack of cards two cards are drawn one after the other, with replacement. The probability that the first is a red card and the second is a king is | [
"1/26",
"1/20",
"1/22",
"1/21"
] | A | Let E1 be the event of drawing a red card.
Let E2 be the event of drawing a king .
P(E1 ∩ E2) = P(E1) . P(E2)
(As E1 and E2 are independent)
= 1/2 * 1/13 = 1/26.
Answer: A | AquaRat_train |
Mrs. Blake teaches English in a large school in the inner area of a big city on the west coast. Even since she was a young girl, she has wanted to become a teacher. She has taught eight years now and hasn't changed her mind. After she graduated from high school, she went on to college. Four years later, she received he... | [
"four years",
"eight years",
"twelve years",
"twenty years"
] | C | MMLU_train | |
The cost of a Washing machine was $400 in 1985. In 2014, the cost had increased to $800. What was the percent increase in the cost of Washing machine? | [
"60",
"200",
"100",
"10"
] | C | Increase = 800 - 400 = 400
% increase = 400*100/400 = 100%
Answer: option E | AquaRat_train |
What process is the opposite of fusion and releases energy only when heavy nuclei are split? | [
"fission",
"osmosis",
"activation",
"diffusion"
] | A | Fission is the opposite of fusion and releases energy only when heavy nuclei are split. As noted in Fusion, energy is released if the products of a nuclear reaction have a greater binding energy per nucleon ( BE / A ) than the parent nuclei. Figure 32.25. | SCiQ_train |
A is a working partner and B is a sleeping partner in the business. A puts in Rs.15000 and B Rs.25000, A receives 10% of the profit for managing the business the rest being divided in proportion of their capitals. Out of a total profit of Rs.9600, money received by A is? | [
"Rs.5200",
"Rs.4200",
"Rs.3240",
"Rs.3800"
] | B | 15:25 => 3:5
9600*10/100 = 960
9600 - 960 = 8640
8640*3/8 = 3240 + 960
= 4200
ANSWER:D | AquaRat_train |
After a mathematics exam, 20 percent of the students reported that they didn't study, while 20 percent of the students who didn't study refused to admit they hadn't studied. What percent of the students didn't study? | [
"50%",
"25%",
"20%",
"35%"
] | B | Statement: 20% of Students (S) Reported they Didn't Study (RDS). Of the students who didn't study (DS) 20% refused to admit they didn't study (notRDT). [Note: A Venn Diagram is useful to visualize the problem.]
Solution: Sample space is 100%.
S = 100%
RDS/S = 20%
notRDS/DS = 20% => 100% - 20% => RDS/DS = 80%
DS/S = (20... | AquaRat_train |
What bond is the force of attraction that holds together oppositely charged ions? | [
"iconic",
"harmonic",
"magnetic",
"ionic"
] | D | An ionic bond is the force of attraction that holds together oppositely charged ions. It forms when atoms of a metal transfer electrons to atoms of a nonmetal. When this happens, the atoms become oppositely charged ions. | SCiQ_train |
When two electric contacts come together it completes a what? | [
"atom",
"breaker",
"cricuit",
"charge"
] | C | Figure below shows a diagram of a simple doorbell. Like most doorbells, it has a button located by the front door. Pressing the button causes two electric contacts to come together and complete an electric circuit. In other words, the button is a switch. The circuit is also connected to a voltage source, an electromagn... | SCiQ_train |
Although April did not bring us the rains we all hoped for, and although the Central Valley doesn't generally experience the sound and lightning that can go with those rains, it's still important for parents to be able to answer the youthful questions about thunder and lightning. The reason these two wonders of nature ... | [
"Only a small number of lightning flashes occur on earth.",
"Lightning flashes usually jump from one cloud to another.",
"Lightning travels 5 times faster than thunder.",
"There are far more lightning strikes occurring on earth than we can imagine."
] | D | MMLU_train | |
What can water's high surface tension be attributed t? | [
"molecules create a thin film-like substance",
"electric impulses in atoms",
"territorial molecules sticking together",
"polar molecules sticking together"
] | D | Water has remarkable properties. Water expands when it freezes, even though all other substances contract. This means that in the winter ice on a pond or lake will float. Water has high surface tension because polar molecules tend to stick together. That's why drops stick together or some bugs can walk on the surface o... | SCiQ_train |
How many seconds will a 500 meter long train take to cross a man walking with a speed of 3 km/hr in the direction of the moving train if the speed of the train is 63 km/hr? | [
"60 sec",
"50 sec",
"25 sec",
"30 sec"
] | D | Let length of tunnel is x meter
Distance = 800+x meter
Time = 1 minute = 60 seconds
Speed = 78 km/hr = 78*5/18 m/s = 65/3 m/s
Distance = Speed*Time
800+x = (65/3) * 60
800+x = 20 * 65 = 1300
x = 1300 - 800 = 500 meters
ANSWER C | AquaRat_train |
Is your TV connected to the Internet? What about your chair or your fridge? It is possible that they are not. But in the future, most things in your home may be connected, as the so-called "Internet of things" is developing. The Internet of things may be coming sooner than you think. It is reported that during his spee... | [
"Companies which produce connected-home devices haven't joined together.",
"Connected-home devices may not work together and can easily get hacked.",
"Companies have difficulty connecting security system to the Internet.'",
"These new devices are produced by different companies."
] | B | MMLU_train | |
Almost all energy at earth's surface comes from where? | [
"wind",
"oceans",
"another sun",
"the sun"
] | D | Almost all energy at Earth's surface comes from the Sun. The Sun’s energy heats the planet and the air around it. This causes the atmosphere to move and create weather. Sunlight also powers photosynthesis and life on Earth. | SCiQ_train |
A number is doubled and 15 is added. If the resultant is multiplied by 5, it becomes 125. What is that number? | [
"10",
"8",
"5",
"None of these"
] | D | Solution
Let the number be x.
Then, 5(2x + 15) ‹=› 125
‹=› 2x+15 = 25
‹=› 2x= 10
x= 5.
Answer D | AquaRat_train |
Sam purchased 20 dozens of toys at the rate of Rs. 375 per dozen. He sold each one of them at the rate of Rs. 33. What was his percentage profit? | [
"5.2%",
"6.5%",
"5.6%",
"6%"
] | C | Cost Price of 1 toy = Rs. 375 = Rs. 31.25
12
Selling Price of 1 toy = Rs. 33
So, Gain = Rs. (33 - 31.25) = Rs. 1.75
Profit % = 1.75 x 100 % = 28 % = 5.6%
C) | AquaRat_train |
How many paying stones, each measuring 2 1/2 m * 2 m are required to pave a rectangular court yard 40 m long and 16 1/2 m board? | [
"132",
"16",
"99",
"15"
] | A | 40 * 33/2 = 5/2 * 2 * x => x
= 132
Answer:B | AquaRat_train |
How much more would Rs.50000 fetch, after two years, if it is put at 20% p.a. compound interest payable half yearly than if is put at 20% p.a. compound interest payable yearly? | [
"923",
"992",
"1205",
"482"
] | C | 50000(11/10)4 - 50000(6/5)2 = 1205
Answer:B | AquaRat_train |
When NASA astronaut Scott Kelly completes his yearlong mission on the International Space Station next year, he'll come back just a little bit younger than his twin, Mark, than he was before. This is because time travels more slowly in space, a phenomenon first described by Albert Einstein's 1915 theory of general rela... | [
"give high praise to Einstein's important publications",
"stress the great contribution that Einstein made to the modern world",
"suggest that more research needs to be done into Einstein and his work",
"say that there was more to Einstein than just being a science genius"
] | B | MMLU_train | |
Are thunderstorms more likely where the ground temperatures are extremely high or extremely low? | [
"somewhat high",
"extremely high",
"somewhat low",
"extremely low"
] | B | Thunderstorms grow where ground temperatures are extremely high. | SCiQ_train |
What is the most common cause of lung cancer? | [
"restaurant smoke exposure",
"tobacco smoke exposure",
"tree smoke exposure",
"coal smoke exposure"
] | B | The new cells gradually move up through the epidermis toward the surface of the body. As they move, they produce the tough, fibrous protein called keratin. | SCiQ_train |
Sanoop bought 8 t-shirts at an average price (arithmetic mean) of Rs.526. If Sanoop returned 4 t-shirts to the retailer, and the average price of the remaining t-shirts was Rs.505, then what is the average price, of the three returned t-shirts? | [
"563",
"562",
"561",
"547"
] | D | Total price of 8 t-shirts= 8*526=4208
Total price of 5 t-shirts=4*505=2020
Total price of 4 t-shirts=4208-2020=2188
Average price of 3 t-shirts=2188/4=547
Correct option Answer:E | AquaRat_train |
Everyone knows what a needle is. Of course there are needles and needles. Needles for sewing machines, needles for injection , you name it. But few people think of the wonder a needle works in the hands of those who practice acupuncture . During the past ten years or so, I have been suffering from terrible headache. It... | [
"the neighbor fixed needles on his own head",
"The neighbor is a kind-hearted person.",
"The man's pain was killed before the doctor arrived",
"Soon after the acupuncture, the man was completely recovered."
] | A | MMLU_train | |
There are 6 working days in a regular week and for each day, the working hours are 10. A man earns Rs. 2.10 per hour for regular work and Rs. 4.20 per hour for overtime. If he earns Rs.525 in 4 weeks, how many hours did he work? | [
"255",
"225",
"245",
"235"
] | C | egular working hours in 4 weeks = (4 × 6 × 10) = 240 hours
Amount earned by working in these regular working hours
= 240 × 2.10 = Rs.504
Additional amount he earned = 525 - 504 = Rs.21
Hours he worked overtime = 21/4.2 = 210/42 = 5 hours
Total hours he worked = 240 + 5 = 245 hours
Answer is E. | AquaRat_train |
If a and b are negative and positive integers respectively,which of the following options must be positive? | [
"(a + b)^2",
"2a/b",
"a/b",
"4a/b"
] | A | A. np
-ve*+ve=-ve
will be negative
B. n/p
-ve/+ve=-ve
C.2a/b
-ve/+ve=-ve
D.4a/b
-ve/+ve=-ve
E.(a + b)^2
will be positive irrespective of the absolute values of x and y
will be positive always | AquaRat_train |
Pressure and ________ are directly proportional at a constant volume? | [
"heating",
"precipitation",
"speed",
"temperature"
] | D | Pressure and temperature are directly proportional at a constant volume. | SCiQ_train |
Where in the female body does egg production take place? | [
"uterus",
"endometrium",
"testes",
"ovaries"
] | D | Egg production takes place in the ovaries. It occurs in several steps:. | SCiQ_train |
When traveling through space what do mechanical waves lose? | [
"Mass",
"Speed",
"Force",
"energy"
] | D | An electromagnetic wave is a transverse wave that can travel across space as well as through matter. When it travels through space, it doesn’t lose energy to a medium as a mechanical wave does. | SCiQ_train |
A boat sails 15 km of a river towards upstream in 5 hours. How long will it take to cover the same distance downstream, if the speed of current is one-fourth the speed of the boat in still water? | [
"7h",
"2h",
"9h",
"3h"
] | D | Explanation:
Upstream speed = B-S
Downstream speed = B+s
B-S = 15/5 = 3 km/h
Again B= 4S
Therefore B-S = 3= 3S
=> S = 1 and B= 4 km/h
Therefore B+S = 5km/h
Therefore, Time during downstream = 15/5 = 3h
Answer: B | AquaRat_train |
Which of these is likely to get hot | [
"an angel",
"a kite",
"a bird",
"space craft"
] | D | MMLU_train | |
a circular wheel radius is 1.75m.for covering 11k.m how much time it revolve? | [
"10",
"1000",
"50",
"10000"
] | B | distance traveled in 1 round=perimeter={2*22/7*175/100}m
=11 m
total no. of revolution in covering 11 km=11000/11=1000
answer C | AquaRat_train |
As a teacher, my daily life includes driving to a new school so I'm usually unable to anticipate the day's events, good or bad! One day, I was teaching in a very difficult classroom. I was managing behavior all morning and by lunch time, I knew I needed coffee to even consider surviving the afternoon. So on my lunch ... | [
"15 minutes",
"8-9 minutes",
"4-5 minutes",
"2 minutes"
] | B | MMLU_train | |
Protein is used by the human body to | [
"build strong bones.",
"absorb vitamins.",
"repair cells.",
"provide fiber."
] | C | MMLU_train | |
There is a lot of talk these days about how kids should be interested in science. Here's an area of science for everyone, and these cool new books might inspire you to discover your inner scientist. Scaly Spotted Feathered Frilled by Catherine Thimmesh, 58 pages, ages 9-12 Seeing a picture or a model of a dinosaur, do ... | [
"butterflies are fond of the tears of Asian cattle",
"scientists have discovered the dinosaur's coloring",
"microscopes can present you with an amazing world",
"man has explored the black hole for thousands of years"
] | C | MMLU_train | |
The lungs, kidneys, skin, and large intestine are all part of what organ system? | [
"excretory",
"sensory",
"digestive",
"respiratory"
] | A | Organs of the excretory system include the kidneys, large intestine, skin, and lungs. | SCiQ_train |
A is 3 years older to B and 3 years younger to C, while B and D are twins. How many years older is C to D? | [
"12",
"3",
"6",
"2"
] | C | B is 6 years younger to C.
B and D are twins.
Hence C is 6 years elder to D.
ANSWER:C | AquaRat_train |
In your body, what two organs work together to make sure that oxygen gets to all the other organs of your body? | [
"Lungs and kidneys",
"Heart and lungs",
"Brain and kidneys",
"Heart and liver"
] | B | MMLU_train | |
A train 150 m long running at 72 kmph crosses a platform in 20 sec. What is the length of the platform? | [
"354 m",
"250 m",
"350 m",
"443 m"
] | B | E
250
E = 72 * 5/18 = 20 = 400 – 150 = 250 | AquaRat_train |
The koala is possibly one of the best known Australian animals, and is found in four states: Queensland, New South Wales, Victoria and South Australia. The word "koala" comes from an Australian aboriginal word meaning "no drink". Sometimes people call them "koala bears" but koala is not a bear. It belongs to a special... | [
"Their foods are poisonous",
"They want to save energy for the activities at night",
"They can't get enough energy from their tough foods",
"They can't get enough water from their leaves"
] | C | MMLU_train | |
A certain stationary store arranges notebooks on display such that each of the seven different colors of notebooks white,yellow, orange, green, red, blue, and purple are consecutive in a repeating pattern. If eight consecutively displayed notebooks are purchased, what is the probability that two of the notebooks are pu... | [
"2/7",
"1/49",
"1/8",
"1/7"
] | D | After white,yellow, orange, green, red, blue, and purple, the next book can be of any given seven colours, therefore we have total seven possibilities, out of which we need purple i.e. 1 therefore prob is 1/7
Answer:C | AquaRat_train |
What fun the animals' party was! The zebras did a great job with the decorations.The lions and giraffes put together delicious food.No one knew music like the forest birds.The bears made clever posters to spread the news to all the animals. When the talent shows began, one of the monkeys hurried out to the dance floor.... | [
"zebras",
"monkeys",
"lions",
"giraffes"
] | A | MMLU_train | |
Shyam purchased a cow for Rs 20000 and 2 goats for 10000. He sold the cow at a loss of 5% and goats at a profit of 15%. Overall he make a.? | [
"500",
"350",
"550",
"400"
] | A | Let the SP of the cow and the goats be Rs. c and Rs. g respectively.
c = 20000(1 - 5/100) = 20000 - 1000
g = 10000(1 + 15/100) = 10000 + 1500
Total SP - Total CP = c + g - (20000 + 10000) = - 1000 + 1500 = Rs. 500
As this is positive, an overall profit of Rs. 500 was made.
Answer: A | AquaRat_train |
Which type of tides are created when the sun and moon's tides match? | [
"spring tides",
"Neap tides",
"weak tides",
"low tides"
] | A | When the Sun's and Moon's tides match, there are spring tides. When the two tides are opposed, there are neap tides. | SCiQ_train |
There are always times in the day when you catch yourself clenching your teeth if you are trying to focus on something important or concentrating on something. Of course, if you are doing this in your sleep you won't be able to catch yourself and stop. The good news is that there are things you can do to help relieve t... | [
"can't get a sound sleep",
"are thinking of something hard to settle",
"feel stressed in their daily life",
"are suffering a persistent headache"
] | C | MMLU_train | |
Comprised mainly of collagen and associated with long bones and the skull, hyaline is the most widespread type of what? | [
"cytoplasm",
"collagen",
"enzymes",
"tissue"
] | B | Cartilage: There are three cartilage types: 1. hyaline cartilage 2. fibrocartilage (fibrous cartilage) 3. elastic cartilage Hyaline cartilage: most widespread cartilage type, in adults forms articular surfaces of long bones, rib tips, rings of trachea, and parts of skull. Mostly collagen, name refers to glassy appearan... | SCiQ_train |
What is the term for the development of an embryo inside an egg within the mother’s body until it hatches? | [
"spawning",
"ovovivipary",
"pregnancy",
"asexual reproduction"
] | B | Ovovivipary refers to the development of an embryo inside an egg within the mother’s body until it hatches. The mother provides no nourishment to the developing embryo inside the egg. This occurs in some species of fish and reptiles. | SCiQ_train |
It is easy for us to tell our friends from our enemies. But can other animals do the same? Elephants can! They can use their sense of vision and smell to tell the difference between people who pose a threat and those who do not. In Kenya, researchers found that elephants react differently to clothing worn by men of the... | [
"Maasai people are a threat to elephants.",
"Kamba people raise elephants for farming.",
"Both Kamba and Maasai people are elephant hunters.",
"Both Kamba and Maasai people traditionally wear red clothing."
] | A | MMLU_train | |
?Allen! 5/7 Monday I'm busy this week. The following Sunday is Mother's Day and there are many activities at school. One of them is PTA Day. It's on Friday. Mum and Dad are both coming. I'm a little nervous . What will Mr. Chang tell them? 5/8 Tuesday Mr. Wu is our new music teacher. He teaches us Mother, a beautiful ... | [
"A beautiful song about our love for mothers.",
"To decorate our classroom.",
"To meet our teachers.",
"To dance."
] | A | MMLU_train |
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