question stringlengths 1 5.01k | choices listlengths 4 4 | answer stringclasses 4
values | support stringlengths 0 3.68k | source stringclasses 3
values |
|---|---|---|---|---|
What kind of mammalian reproduction is risky for the offspring but not the mother? | [
"monotreme",
"sexual",
"asexual",
"cactaceae"
] | A | Monotreme reproduction is the least risky for the mother. However, eggs are harder to protect than is an embryo or a fetus in a pouch or uterus. Therefore, monotreme offspring may have a lower chance of surviving than the offspring of therian mammals. | SCiQ_train |
Some people believe that classes, teachers and school buildings will no longer be necessary in the near future because of the Internet and other new technology. Perhaps this will be true one day, but if the world has no schools, I can't imagine how our society will be. In fact, we should learn how to use new technology... | [
"Because whole city is connected to the Internet.",
"Because everyone can go on the Internet.",
"Because getting online is very easy.",
"Because Scientists could give talks through the Internet."
] | A | MMLU_train | |
If 4 consecutive letters are selected at random from the English alphabet, then the probability that one of the letters is a vowel is ? | [
"17/23",
"18/23",
"13/23",
"16/23"
] | A | Total no. of ways of selecting 4 consecutive letters => 23 [Like abcd, bcde, efgh,..etc]
No. of ways of having one is a vowel => abcd, bcde, cdef, defg, efgh, fghi, ghij, hijk, ijkl, lmno, mnop, nopq, opqr, rstu, stuv, tuvw, uvwx...
= 17
P(one of letter is vowel) = 17/23
ANSWER:D | AquaRat_train |
if a spoon was placed outside under our closest star, what could happen to it? | [
"it would shrink smaller",
"it would feel warmer to touch",
"it would freeze over",
"it would become a gas"
] | B | MMLU_train | |
What is critical for the formation of hemoglobin? | [
"proteins",
"salts",
"iron ions",
"platelets"
] | C | Minerals Minerals in food are inorganic compounds that work with other nutrients to ensure the body functions properly. Minerals cannot be made in the body; they come from the diet. The amount of minerals in the body is small—only 4 percent of the total body mass—and most of that consists of the minerals that the body ... | SCiQ_train |
Johnny walked toward the time machine. His adult neighbor, the scientist, had asked him to watch it for him for the weekend. He had also asked Johnny not to touch it. But it was a time machine. Johnny had to see it. The machine was big and silver and shiny and looked like an ice cream cone that had been dropped. It ha... | [
"A silver ice-cream cone with a round hole",
"A silver triangle with a square hole",
"A silver ice-cream cone with a square hole",
"A silver triangle with a round hole"
] | C | MMLU_train | |
Two trains 100 meters and 120 meters long are running in the same direction with speeds of 100 km/hr, 82 km/hr. In how much time will the first train cross the second | [
"48 sec",
"36 sec",
"44 sec",
"37 sec"
] | C | Explanation:
Relative speed of the trains = (100 - 82) km/hr = 18 km/hr
= (18× 5/18) m/sec = 5 m/sec.
Time taken by the trains to cross each other
= Time taken to cover (100 + 120) m at 5 m /sec = (220/5) sec = 44 sec.
Answer: Option D | AquaRat_train |
In animals, how many sets of chromosomes do gametes have? | [
"one",
"2",
"23",
"zero"
] | A | SCiQ_train | |
Of the 14 members of a dancing group,10 can perform modern dancing, 8 can perform traditional dancing, and 4 can perform both type of dancing. If one member is chosen at random, what is the probability that the member chosen will be someone who can not perform neither type of dancing? | [
"c) 1/7",
"b) 1/10",
"d) 1/4",
"e) 0"
] | D | You know how to solve for Total number of people who can perform at least one type of dancing:
Total = n(A) + n(B) - n(A and B)
Total people who can use at least one machine = 10 + 8 - 4 = 14
So all 14 people know how to perform at least one type of dancing. Hence, if you pick anyone, the probability is 0 that he/she w... | AquaRat_train |
If n has 15 positive divisors, inclusive of 1 and n, then which of the following could be the number of divisors of 3n?
I. 20
II. 30
III. 40 | [
"II and III only",
"I, II and III only",
"II only",
"I and II only"
] | D | n has 15 positive divisors --> n=p^14 (the # of factors (14+1)=15) or n=p^2q^4 (the # of factors (2+1)(4+1)=15).
If neither p nor q is 3, then:
3n=3p^14 will have (1+1)(14+1)=30 factors.
3n=3p^2q^4 will have (1+1)(2+1)(4+1)=30 factors.
If p = 3, then:
3n=3p^14 =3^15 will have (15+1)=16 factors.
3n=3p^2q^4 = 3^3 p^4 wil... | AquaRat_train |
Sitting on the peaceful coast of Galapagos Islands, Ecuador, watching the sun move quietly into the sea, you shouldn't forget that Charles Darwin (1809-1882) arrived here in 1835. He stayed on the islands for five weeks, observing various animals. This finally inspired his famous work,On the Origin of Species. You ca... | [
"People cannot visit the islands as they wish.",
"Local government forbids killing wildlife.",
"Animals on the islands feed on grass.",
"Tourists are not allowed to touch the animals."
] | A | MMLU_train | |
Good morning, everyone! Welcome to our school. Now you are students of a middle school. All the things here are new. The life here is a little different. I think you must know what you can do and what you can't do. It can help you study well and live happily. Here are some rules of our school. You have to come to schoo... | [
"nine",
"seven and a half",
"eight",
"eight and a half"
] | B | MMLU_train | |
The World Health Organization reports a number of people have died of the Ebola virus in central Africa during the last few months. Ebola, also known as Ebola hemorrhagic fever or Ebola viral disease, is a rare and deadly illness with high death rates in humans and primates. The natural source of Ebola virus remains... | [
"Once infected with the Ebola virus, people can never survive.",
"Half of the Ebola victims will lose their lives.",
"No cure has been found for the disease.",
"Scientists have succeeded in preventing Ebola."
] | C | MMLU_train | |
What do we call the temperature at which a substance melts? | [
"melting point",
"boiling point",
"precipitation point",
"evaporation point"
] | A | The temperature at which a substance melts is called its melting point. The melting point of ice is 0°C. | SCiQ_train |
Which of these groups contains single-celled organisms? | [
"birds",
"plants",
"fungus",
"animals"
] | C | MMLU_train | |
KangKang has a good friend. Her name is Han Mei. She is fourteen years old. She has a round face.She has a small mouth,a small nose and big eyes.Her hair is long,and her ears are big. Do you know her? ,. Han Mei's face is _ . | [
"big",
"small",
"long",
"round"
] | D | MMLU_train | |
Write 890,000,000,000 in scientific notation. | [
"8.9 * 10 11",
"8.900 * 10 11",
"800.900 * 10 11",
"80.9000* 10 11"
] | A | a * 10 n , where a is a real number such that 1 * |a| < 10 and n is an integer.
890,000,000,000 = 8.9* 100,000,000,000 = 8.9 * 10 11**
correct answer A | AquaRat_train |
What is considered to be the control center for homeostatic mechanisms? | [
"thyroid",
"hypothalamus",
"adrenal cortex",
"hippocampus"
] | B | The Hypothalamus The hypothalamus is the control center for many homeostatic mechanisms. It regulates both autonomic function and endocrine function. The roles it plays in the pupillary reflexes demonstrates the importance of this control center. The optic nerve projects primarily to the thalamus, which is the necessar... | SCiQ_train |
Plants not only contribute food but what else for organisms? | [
"dioxide",
"carbon",
"oxygen",
"hydrogen"
] | C | The oxygen atoms, however, form oxygen gas, which is a waste product of photosynthesis. The oxygen given off supplies most of the oxygen in our atmosphere. Before photosynthesis evolved, Earth’s atmosphere lacked oxygen altogether, and this highly reactive gas was toxic to the many organisms living at the time. Somethi... | SCiQ_train |
A truck owner will refuel his vehicle at a rate of 2 gallons of diesel fuel every 5 seconds. If diesel fuel costs $ 1.0 per gallon, how long will it take for the truck owner to refuel his vehicle with $ 40 worth of diesel fuel? | [
"1 minute 40 seconds",
"20 seconds",
"20 minutes",
"1 minute"
] | A | 2 gal / 5 sec
$1.25 / gal
$40/$1.25 = 40 gal
2 gal / 5 sec with 40 gal = 100 sec
C. 1 minute 40 seconds | AquaRat_train |
Where are the oceans most polluted? | [
"along coasts",
"on the ocean floor",
"along reefs",
"in warmer waters"
] | A | The oceans are most polluted along coasts. Why do you think that's the case? Of course, it's because most pollution enters the oceans from the land. Runoff and rivers carry the majority of pollution into the ocean. Many cities dump their wastewater , water mixed with waste, directly into coastal waters. In some parts o... | SCiQ_train |
50 men can complete a work in 65 days.Five days after started the work, 20 men left the group. In how many days can the remaining work be completed? | [
"110 days.",
"120 days.",
"100 days.",
"140 days."
] | C | D
100 days.
After 5 days, the following situation prevails.
50 men can complete the work in 60 days.
30 men can complete the work in ? days.
M1 D1 = M2 D2
=> 50 * 60 = 30 * D2
=> D2 = (50 * 60)/30 = 100 days. | AquaRat_train |
Shift Happens by Robert Holden Price: $ 6.49 It's an excellent book that will greatly improve your life. It has insightful wisdom that is easy toapply in everyday life. It's written in a very thoughtful and humorous way. Read it when you are stressed and it will help you remember what is important in your life. Balan... | [
"$29",
"$23.20",
"$26.50",
"$22.40"
] | B | MMLU_train | |
An artificial pacemaker is a device that regulates the beat of the heart by an electrical stimulus. Some early pacemakers were powered by batteries and were worn externally with wires passing through the skin to the surface of the heart. Modern pacemakers are now much smaller and are implanted surgically. Which most li... | [
"the development of thinner wires",
"the invention of lithium batteries",
"mass production of pacemaker parts",
"reducing the cost of producing pacemakers"
] | B | MMLU_train | |
Food is chemical energy stored in what? | [
"DNA molecules",
"typical molecules",
"oxygen molecules",
"organic molecules"
] | D | Food is chemical energy stored in organic molecules. | SCiQ_train |
The coyote , that clever animal of wide-open spaces, has come to the nation's capital. In fact, coyotes have spread to every corner of the United States, changing their behaviors to fit new environments and causing researchers to deal with a troublesome new kind of creature: the city coyote. The coyote originally live... | [
"tell people how to fight against coyotes",
"tell us why the coyote is the most hunted animal",
"supply the reason why the coyote is a kind of notorious pest",
"explain how the coyote has spread to and survived in cities"
] | D | MMLU_train | |
What was the day of the week on, 17th July, 1776? | [
"Wednesday",
"Monday",
"Tuesday",
"Saturday"
] | A | 16th July, 1776 = (1775 years + Period from 1st Jan, 1776 to 16th July, 1776)
Counting of odd days :
1600 years have 0 odd day.
100 years have 5 odd days.
75 years = (18 leap years + 57 ordinary years) = [(18 x 2) + (57 x 1)] = 93 (13 weeks + 2 days) = 2 odd days.
1775 years have (0 + 5 + 2) odd days = 7 odd days = 0 o... | AquaRat_train |
The speed of a boat in still water is 55kmph and the speed of the current is 20kmph. Find the speed downstream and upstream? | [
"75,35 kmph",
"80,70 kmph",
"84,40 kmph",
"80,40 kmph"
] | A | Speed downstream = 55 + 20
= 75 kmph
Speed upstream = 55 - 20
= 35 kmph
Answer: C | AquaRat_train |
What does photosynthesis change light energy into? | [
"carbon energy",
"electrical energy",
"chemical energy",
"radiation energy"
] | C | Photosynthesis changes light energy to chemical energy. The chemical energy is stored in the bonds of glucose molecules. Glucose, in turn, is used for energy by the cells of almost all living things. Photosynthetic organisms such as plants make their own glucose. Other organisms get glucose by consuming plants (or orga... | SCiQ_train |
In the lungs, bicarbonate is transported back into the red blood cells in exchange for what? | [
"oxygen",
"phosphate",
"chloride",
"glucose"
] | C | 39.4 Transport of Gases in Human Bodily Fluids Hemoglobin is a protein found in red blood cells that is comprised of two alpha and two beta subunits that surround an iron-containing heme group. Oxygen readily binds this heme group. The ability of oxygen to bind increases as more oxygen molecules are bound to heme. Dise... | SCiQ_train |
Welcome to the Kids' Science Challenge! Do you like science projects and winning some awesome gifts? This is the challenge for you. What's even better is that you don't have to build anything -- Simply come up with an original idea or design that relates to one of three topics given below. Wonderful Sounds Ready for Wo... | [
"Magical Microbes.",
"Super Material for Sports.",
"Wonderful Sounds.",
"All the three."
] | A | MMLU_train | |
Excluding stoppages, the average speed of a bus is 60 km/hr and including stoppages, the average speed of the bus is 35 km/hr. For how many minutes does the bus stop per hour? | [
"20",
"24",
"22",
"99"
] | B | In 1hr, the bus covers 60 km without stoppages and 35 km with stoppages.
Stoppage time = time take to travel (60 - 35) km i.e 25 km at 60 km/hr.
stoppage time = 25/60 hrs = 24 min.
Answer: C | AquaRat_train |
Jan was a window cleaner. One morning, Jan was in a lift of a high building with his window cleaning tools when the building was on fire. There were five other passengers in the lift. All of a sudden the lift stopped. Although they didn't know what had happened outside, they had only 100 minutes to get out of the build... | [
"5.",
"6.",
"15.",
"We don't know."
] | B | MMLU_train | |
The journey two divers made some time ago to the deepest point on the earth makes us realize how much of the world still remains to be studied. The two men went down seven miles to the bottom of the Pacific Ocean inside a small steel ball to find out if there are any ocean currents or signs of life. It was necessary t... | [
"there was no life but some small dead sea creatures",
"fish were swimming as freely as they do near the surface",
"fish were not swimming freely in the dark water",
"fish were not swimming freely under the high water pressure"
] | B | MMLU_train | |
What are regular changes in biology or behavior that occur in a 24 hour cycle? | [
"circadian rhythm",
"cognitive rhythm",
"auditory rhythm",
"life cycle"
] | A | Circadian rhythms are regular changes in biology or behavior that occur in a 24-hour cycle. In humans, for example, blood pressure and body temperature change in a regular way throughout each 24-hour day. | SCiQ_train |
On a hot summer day, a little boy decided to go for a swim in the lake behind his house. In a hurry to swim in the cool water, he ran out of the back door, leaving behind his shoes, socks, and shirt as he went. He flew into the water, not noticing that in the middle of the lake, a crocodile was swimming to the bank... | [
"swam to the middle of the lake",
"quickly ran toward the water",
"ran out of the back door of his house",
"swam quickly towards his mother"
] | D | MMLU_train | |
Skin-diving is a new sport today. This sport takes you into a wonderful new world. It is like a visit to the moon!When you are under water,it is easy for you to climb big rocks, because you are no longer heavy. Here,under water,everything is blue and green.During the day,there is enough light. When fish swim nearby,you... | [
"can see everything clearly",
"can't see anything clearly",
"can see nothing",
"can see only fishes"
] | A | MMLU_train | |
Jack is 10 years old, and I am his pencil. I'm Jack's helper . Jack's pencil box is my home. I have some friends here. They are seven crayons, a ruler, a pencil-sharpener and an eraser. Because Jack loves me, I'm the king in the pencil box. My friends and I are happy every day. Today, I am not happy because a pen come... | [
"student",
"pencil-case",
"school bag",
"pencil"
] | A | MMLU_train | |
What is the ideal mechanical advantage in the single fixed pulley? | [
"4",
"zero",
"1",
"2"
] | C | In the single fixed pulley, only one rope segment pulls up on the load, so the ideal mechanical advantage is 1. In other words, this type of pulley doesn’t increase the force that is applied to it. However, it does change the direction of the force. This allows you to use your weight to pull on one end of the rope and ... | SCiQ_train |
Feel tired lately? Has a doctor said he can't find anything wrong with you? Perhaps he has sent you to a hospital, but all the advanced equipment there shows that there is nothing wrong with you. Then, consider this: you might be in a state of sub-health. Sub-health, also called the third state or gray state, is explai... | [
"they have used up their energy",
"they have lost their living hopes",
"they have more pressure in life and work",
"they begin to get older"
] | C | MMLU_train | |
Rabbits are easy to raise. They are clean and quiet. They don't need a lot of room. And it costs a small amount of money to feed them, but you can get a big return. One male and two females will produce as many as fifty more rabbits in a year. That is enough to provide enough meat for a family. Rabbit meat is high in p... | [
"Because the holes let in sunlight.",
"Because rabbits like these holes.",
"Because rabbits get food from them.",
"Because waste of rabbits drops through the holes."
] | D | MMLU_train | |
Have you ever tried to understand something new on your own but found it a bit too difficult in books or on the Internet? Don't be worriedyou can get help at Khan Academy . Khan Academy is an online learning website created in 2007 by Salman Khan, an American teacher. In order to provide "a free world-class education t... | [
"was started by an American teacher",
"has a history of over 10 years",
"doesn't provide free lectures",
"is fit only for college students"
] | A | MMLU_train | |
The planets aren't the only wanderers of the sky. There're some things even farther and longer. Long after people were no longer afraid of planets, they still thought the comets were bad objects that traveled in the sky. They were afraid that the comets would suddenly land on the earth and hurt them. But, in fact, ev... | [
"long hair",
"round heads",
"round dishes",
"wide wings"
] | A | MMLU_train | |
How does consuming enterobactin help our body? | [
"builds excess iron",
"eliminates excess fat",
"eliminates excess iron",
"eliminates excess oxygen"
] | C | Complexing agents that tie up metal ions are also used as drugs. British Anti-Lewisite (BAL), HSCH2CH(SH)CH2OH, is a drug developed during World War I as an antidote for the arsenic-based war gas Lewisite. BAL is now used to treat poisoning by heavy metals, such as arsenic, mercury, thallium, and chromium. The drug is ... | SCiQ_train |
What is the simplest unit of structure and function of all living organisms called? | [
"cell",
"partical",
"atom",
"molecule"
] | A | A cell is the simplest unit of structure and function of all living organisms. From the smallest bacteria to the largest whale, all life is made of at least one cell. | SCiQ_train |
Two stations A and B are 110 km apart on a straight line. One train starts from A at 7 a.m. and travels towards B at 20 kmph. Another train starts from B at 8 a.m. and travels towards A at a speed of 25 kmph. At what time will they meet? | [
"11.30 a.m",
"10 a.m.",
"9 a.m.",
"10.30 a.m."
] | B | Suppose they meet x hours after 7 a.m.
Distance covered by A in x hours = 20x km.
Distance covered by B in (x - 1) hours = 25(x - 1) km.
Therefore 20x + 25(x - 1) = 110
=> 45x = 135
=> x = 3.
So, they meet at 10 a.m.
Answer: Option B | AquaRat_train |
Sugars are simple types of what biochemical compounds and possess relatively small molecules? | [
"carbohydrates",
"vegetables",
"lipids",
"proteins"
] | A | Carbohydrates are biochemical compounds that include sugar, starch, glycogen, and cellulose. Sugars are simple carbohydrates with relatively small molecules. Glucose is one of the smallest sugar molecules. Its chemical formula is C 6 H 12 O 6 . This means that a molecule of glucose contains 6 atoms of carbon, 12 atoms ... | SCiQ_train |
A boy wants to go abroad by boat and return by flight. He has a choice of 4 different boat to go and 5 flight to return. In how many ways, can the boy perform his journey? | [
"30",
"35",
"50",
"20"
] | D | Ans.(A)
Sol. Number of choices to go by ship = 4 Number of choices to return by airline = 5 From, fundamental principle, total number of ways of performing the journey = 4 x 5 = 20 ways | AquaRat_train |
Out of first 20 natural numbers, one number is selected at random. The probability that it is either an even number or a prime number is | [
"17/28",
"17/19",
"17/20",
"17/22"
] | C | n(S) = 20
n(Even no) = 10 = n(E)
n(Prime no) = 8 = n(P)
P(EᴜP) = 10/20 + 8/20 - 1/20 = 17/20
Answer: D | AquaRat_train |
In each term of a sequence, 3 is added to get the next term. If the first term is 6, what is the 64th term? | [
"120",
"134",
"192",
"154"
] | C | 1rst term + 63 terms = 6 + 3+3+3+3+3+3+3+...+3 (63 times)
6 + (3 x 63) = 3 + 189 = 192
Answer A | AquaRat_train |
seeds may grow when | [
"ingested",
"roasted",
"left alone",
"placed underground"
] | D | MMLU_train | |
Which theory describes the benzene molecule and other planar aromatic hydrocarbon molecules as hexagonal rings of sp2-hybridized carbon atoms with the unhybridized p orbital of each carbon atom perpendicular to the plane of the ring? | [
"hybrid orbital theory",
"valence bond theory",
"molecular orbital theory",
"covalent bond theory"
] | B | Valence bond theory describes the benzene molecule and other planar aromatic hydrocarbon molecules as hexagonal rings of sp2-hybridized carbon atoms with the unhybridized p orbital of each carbon atom perpendicular to the plane of the ring. Three valence electrons in the sp2 hybrid orbitals of each carbon atom and the ... | SCiQ_train |
Older fathers have uglier children, researchers have claimed after linking age to genetic mutations . The finding comes weeks after leading scientists reported children born to men over the age of 45 run a higher risk of having autism and mental disorders. With age, sperm -producing cells do not copy a man's DNA as eff... | [
"Genetic mutations inside a person cause autism",
"Environmental factors contribute to autism",
"In the UK, one percent of its population are affected by autism",
"Autism prevents people from interacting socially and communicating openly"
] | D | MMLU_train | |
A geiger counter is used for detecting what? | [
"mutation",
"radiation",
"pressure",
"convection"
] | B | One of the simplest ways of detecting radioactivity is by using a piece of photographic film embedded in a badge or a pen. On a regular basis, the film is developed and checked for exposure. Comparing the exposure level of the film with a set of standard exposures indicates the amount of radiation a person was exposed ... | SCiQ_train |
What basic structures take in nutrients from the soil and help the plant survive? | [
"leaves",
"stems",
"roots",
"tissues"
] | C | SCiQ_train | |
The list price of an article is Rs.65. A customer pays Rs.56.16 for it. He was given two successive discounts, one of them being 10%. The other discount is? | [
"3",
"6",
"8",
"4"
] | D | 65*(90/100)*((100-x)/100) = 56.16
x = 4%.Answer:B | AquaRat_train |
Bamboo is one of nature's most surprising plants.Many people call this plant a tree,but it is a kind of grass. Like other kinds of grass,a bamboo plant may be cut very low to the ground,but it will grow back very quickly.A Japanese scientist reported one bamboo plant which grew 1.5 meters in 24 hours ! Bamboo grows alm... | [
"It grows quickly.",
"It's wood.",
"It is easy to cut.",
"It is very thin."
] | A | MMLU_train | |
If n is a natural number, then (6n2 + 6n) is always divisible by: | [
"6 only",
"None",
"by 18 only",
"6 and 12 both"
] | D | EXPLANATION
(6n2 + 6n) = 6n(n + 1), which is always divisible by 6 and 12 both, since n(n + 1) is always even.
Answer B | AquaRat_train |
Physical or chemical changes are generally accompanied by a transfer of what? | [
"shape",
"color",
"pressure",
"energy"
] | D | When physical or chemical changes occur, they are generally accompanied by a transfer of energy. The law of conservation of energy states that in any physical or chemical process, energy is neither created nor destroyed. In other words, the entire energy in the universe is conserved. In order to better understand the e... | SCiQ_train |
In a molecular compound, electrons are shared between atoms in which type of bond? | [
"corrosion",
"covalent",
"deformation",
"Ionic"
] | B | The electron loss and gain is easy to see in a reaction in which ions are formed. However, in many reactions, no such electron transfer occurs. In a molecular compound, electrons are shared between atoms in a type of bond called a covalent bond. Yet it is still common for reactions involving molecular compounds to stil... | SCiQ_train |
One day, a middle school teacher comes into the classroom and says to his students: "Today I want you to write about yesterday's football match. I'm going to take your exercise books home with me. Now please begin. " The students all take out their pens and exercise books and begin to write. A boy called Tom thinks har... | [
"In class",
"At home",
"At school",
"In the classroom"
] | B | MMLU_train | |
The simplest and smallest particle of matter that still has chemical properties of the element is called? | [
"an atom",
"a nucleus",
"a molecule",
"an isotope"
] | A | Inside of elements, you will find identical atoms. An atom is the simplest and smallest particle of matter that still has chemical properties of the element. Atoms are the building block of all of the elements that make up the matter in your body or any other living or non-living thing. Atoms are so small that only the... | SCiQ_train |
How many positive integers less than 250 are multiple of 4 but NOT multiples of 6? | [
"31",
"42",
"20",
"53"
] | B | Multiples of 4 less than 250 = {4,8,12,......248} = 62 numbers
Multiples of 4 which are multiples of 3 too ={12,24,36.....240} = 20 numbers
So required number= 62-20 = 42
Choice C | AquaRat_train |
A train covers a distance of 12 km in 10 min. If it takes 9 sec to pass a telegraph post, then the length of the train is? | [
"178 m",
"120 m",
"177 m",
"180 m"
] | D | Speed = (12/10 * 60) km/hr = (72 * 5/18) m/sec
= 20 m/sec.
Length of the train = 20 * 9
= 180 m.
Answer: E | AquaRat_train |
Hybrid cars are cars that run on petrol and electricity. They have a small standard petrol engine and a battery electric motor to provide electric power. There are some differences between different models of hybrid cars, but the general principle is that the car runs on petrol, and the electric motor kicks in when... | [
"energy wasted in conventional cars is stored in the battery",
"the conventional brakes are used to slow down the car",
"the battery charges itself when the car is accelerating",
"the petrol engine is usually turned off automatically"
] | A | MMLU_train | |
Musicians wanted We want four good musicians for our rock band .Are you a musician?Can you sing?Can you play the piano,the guitar or the drums?Do you want to be the best musician?If you want to join us,please send an e-mail.Our e-mail address is rockband2009@pep.com.cn.Or you can call Mr.Liu at 790-4566. Teachers need... | [
"paint",
"sing",
"draw",
"swim"
] | B | MMLU_train | |
American researchers say drinking tea may help strengthen the body's defense system against infection. Doctors at Brigham and Women's Hospital in Boston, Massachusetts, did the study. The team studied a chemical found in black, green, oolong and pekoe tea. This chemical is an amino acid called L-theanine. The scientist... | [
"the findings of the study have already proved to be true",
"further study is needed to prove the findings true",
"he has taken some amino acid L-theanine from tea and made a drug with it",
"he is not sure whether tea help prevent heart disease and cancer"
] | B | MMLU_train | |
A man made a nice talking machine. It could weigh people. The man wanted to try the machine before he could make a lot of these kinds of machines. He put the machine into the waiting room of a station . There were always lots of people in and out there. The first one began to use the machine. It was an Indian woman. W... | [
"tell people what they should eat",
"weigh and talk to people",
"tell people how old they are",
"tell a story"
] | B | MMLU_train | |
In alcoholic fermentation , which acid changes to alcohol and carbon dioxide? | [
"rain",
"pyruvic",
"lipoic",
"chloride"
] | B | In alcoholic fermentation , pyruvic acid changes to alcohol and carbon dioxide. This is shown in Figure below . NAD + also forms from NADH, allowing glycolysis to continue making ATP. This type of fermentation is carried out by yeasts and some bacteria. It is used to make bread, wine, and biofuels. | SCiQ_train |
An article is bought for Rs.680 and sold for Rs.900, find the gain percent? | [
"33 8/3%",
"32 6/17%",
"32 1/3%",
"33 1/8%"
] | B | 680---- 220
100 ---- ? => 32 6/17%
Answer: D | AquaRat_train |
In which example could a thermometer be used to show that heat energy is being transferred? | [
"A piano is played by striking the keys.",
"A shovel is used to move dirt from one place to another.",
"A ball is thrown into the air.",
"A stove is used to boil water in a pan."
] | D | MMLU_train | |
Where are about 75% of the tar sands in the world located? | [
"alberta, canada and peru",
"china and onatrio, canada",
"venezuela and onatrio,canada",
"venezuela and alberta, canada"
] | D | About 75% of the tar sands in the world are in Venezuela and Alberta, Canada ( Figure below ). Large areas of land are degraded when tar sands are mined. A tremendous amount of waste rock is produced from mining tar sands. | SCiQ_train |
A car traveled 462 miles per tankful of gasoline on the highway and 336 miles per tankful of gasoline in the city. If the car traveled 18 fewer miles per gallon in the city than on the highway, how many miles per gallon did the car travel in the city? | [
"32",
"21",
"16",
"48"
] | D | I treat such problems as work ones.
Work=Rate*Time
Mileage(m)=Rate(mpg)*Gallons(g)
X gallons is a full tank
{462=RX
{336=(R-18)X solve for R, R=66
66-18=48 mpg
E | AquaRat_train |
What is the critical factor for the survival of segmented worms? | [
"sunlight and warmth",
"water and humidity",
"sunlight and water",
"humidity and sunlight"
] | B | Phylum Annelida Phylum Annelida includes segmented worms. These animals are found in marine, terrestrial, and freshwater habitats, but a presence of water or humidity is a critical factor for their survival, especially in terrestrial habitats. The name of the phylum is derived from the Latin word annellus, which means ... | SCiQ_train |
The length of the bridge, which a train 150 meters long and travelling at 45 km/hr can cross in 30 seconds, is: | [
"239",
"232",
"277",
"225"
] | D | Speed = (45 * 5/18) m/sec = (25/2) m/sec. Time = 30 sec. Let the length of bridge be x meters. Then, (150 + X)/30
= 25/2 ==> 2(150 + X) = 750 ==> X = 225 m.
Answer: C | AquaRat_train |
In a school 50% of the students are younger than 10, 1/20 are 10 years old and 1/10 are older than 10 but younger than 12, the remaining 70 students are 12 years or older. How many students are 10 years old? | [
"8",
"10",
"6",
"5"
] | B | Let us write the fraction for each group of students
Group A: younger than 10: 50% = 50/100 = 1/2
Group B: 10 years old: 1/20
Group C: older that 10 but younger than 12: 1/10
Group D: 12 years or older: 70 students
The fraction for group A, B and C together is given by
1 / 2 + 1 / 20 + 1 / 10 = 10 / 20 + 1 / 20 + 2 / 2... | AquaRat_train |
Athletes such as swimmers and bicyclists wear body suits in competition to minimize what forces? | [
"activity forces",
"rolling forces",
"drag forces",
"natural forces"
] | C | 5.2 Drag Forces 5. Athletes such as swimmers and bicyclists wear body suits in competition. Formulate a list of pros and cons of such suits. Two expressions were used for the drag force experienced by a moving object in a liquid. One depended upon the speed, while the other was proportional to the square of the speed. ... | SCiQ_train |
The oddness of life in space never quite goes away. Here are some examples. First consider something as simple as sleep. Its position presents its own challenges. The main question is whether you want your arms inside or outside the sleeping bag. If you leave your arms out, they float free in zero gravity, often giving... | [
"their senses stop working",
"they have to stand up straight",
"they float out of their seats unexpectedly",
"whether they are able to go back to the station"
] | D | MMLU_train | |
Have you ever noticed the colour of the water in a river or stream after a heavy rainfall? What do you think caused this change in colour? It is soil that has been washed into the river from the riverbank or from the nearby fields. Components of Soil Soil is made up of a number of layers, each having its own distinctiv... | [
"Soil forms from weathered rock on the earth surface.",
"Air pollution is partially responsible for acid soil.",
"The deeper layer of soil is darker in colour than the surface soil.",
"Groundwater tends to carry away nutrients for plant growth."
] | C | MMLU_train | |
In experiments with garden peas, austrian monk gregor mendel described the basic patterns of what? | [
"behavior",
"inheritance",
"color",
"preference"
] | B | For thousands of years, humans have understood that characteristics such as eye color, hair color, or even flower color are passed from one generation to the next. The passing of characteristics from parent to offspring is called heredity . Humans have long been interested in understanding heredity. Many hereditary mec... | SCiQ_train |
Fossil fuel consumption is a major contributor to global emissions of what gas? | [
"methane",
"carbon monoxide",
"carbon dioxide",
"oxygen"
] | C | Global carbon dioxide emissions from fossil fuel consumption and cement production. The black line represents all emission types combined. The colored lines show emissions from individual fossil fuels. | SCiQ_train |
An empty fuel tank is filled with brand Z gasoline. When the tank is 1/4 empty, it is filled with brand Y gasoline. When the tank is half empty again, it is filled with brand Z gasoline. When the tank is half empty again, it is filled with brand Y gasoline. At this time, what percent of the gasoline in the tank is bran... | [
"50%",
"30%",
"31.25%",
"40%"
] | C | Work with fraction of brand Z in the tank.
1st step: brand Z is 1
2nd step: brand Z is 1/4
3rd step: brand Z is (1/2)*(1/4) + 1/2 =5/8
4th step: brand Z is (1/2)*(5/8) = 5/16
Answer (A) | AquaRat_train |
What is the most common type of volcano? | [
"cinder cone",
"block cone",
"flat",
"geyser"
] | A | Cinder cones are the smallest and most common type of volcano. Cinder cones have steep sides like composite volcanoes. But they are much smaller, rarely reaching even 300 meters in height. Cinder cones usually have a crater at the summit. Cinder cones are composed of small fragments of rock, called cinders. The cinders... | SCiQ_train |
A man sold 20 articles for $50 and gained 20%. How many articles should he sell for $90 to incur a loss 20%? | [
"45",
"36",
"54",
"48"
] | C | Production cost per article: $50*(100%-20%) / 20 = $2.0
Required production costs for a loss of 20%: $90*(100% + 20%) = $108
Number of articles to be sold for $108 to incur a 20% loss: $108 / $2.0 = 54
Thus, solution D is correct. | AquaRat_train |
A rope of which a calf is tied is increased from 16 m to 23 m, how much additional grassy ground shall it graze? | [
"858",
"1210",
"1212",
"1219"
] | A | π (232 – 162) = 858
Answer:E | AquaRat_train |
Name the type of system that a jellyfish does not have? | [
"hereditary",
"circulatory",
"nervous",
"reproductive"
] | B | The half-life of titanium-44 is 60.0 y. A sample of titanium contains 0.600 g of titanium-44. How much remains after 100.0 y?. | SCiQ_train |
John is driving A Royal Enfield motor cycle at 66 km per hour when his rest duration is not considered. He takes small breaks each of 1 minute for every 10 minute of his drive. How much distance will the motor cycle cover in 90 minutes? | [
"89.9Km",
"89.8Km",
"89.1Km",
"89.3Km"
] | C | he take break each of 1 minute for every 10 minutes so he drives 81 minutes
66/60*81=89.1km
ANSWER:B | AquaRat_train |
The human body is an amazing and complex machine. It is very tough, and we usually recover from illness or injury on our own, without the help of a doctor. But what happens when we need medical treatment? In the past, some people went to a clinic or hospital to see a medical doctor. Other people trusted ancient traditi... | [
"It costs less than medical care in hospitals.",
"Patients can choose between complementary medicine and drugs or surgery.",
"It helps patients feel healthier even when they are not sick.",
"It focuses mainly on a particular illness or injury."
] | D | MMLU_train | |
The sum of ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child? | [
"8 years",
"3 years",
"6 years",
"4 years"
] | D | Let the ages of children be x, (x + 3), (x + 6), (x + 9) and (x + 12) years.
Then, x + (x + 3) + (x + 6) + (x + 9) + (x + 12) = 50
5x = 20
x = 4.
Age of the youngest child = x = 4 years.
B) | AquaRat_train |
If the sum and difference of two numbers are 10 and 19 respectively, then the difference of their square is: | [
"28",
"190",
"160",
"180"
] | B | Let the numbers be x and y.
Then, x + y = 10 and x - y = 19
x2 - y2 = (x + y)(x - y) = 10 * 19 = 190.
ANSWER:E | AquaRat_train |
What type of aspect can be made from the moving winds? | [
"snow",
"wood",
"bananas",
"electricity"
] | D | MMLU_train | |
Can technology improve your trip? Meet Judy Williams. When she and her husband recently checked into Blu Hotel in Zurich, a clerk asked them to sign the dotted line on a room rate hundreds of dollars higher than their online offer. "It was not a cheap stay," says Williams, a lawyer from Billings, Mont. But it became mo... | [
"To encourage people to travel.",
"To introduce some new apps.",
"To help people with technology problems.",
"To provide people with traveling information."
] | B | MMLU_train | |
As I search among classifications, its groupings of materials, and properties, I may be looking for | [
"hydrogen peroxide",
"aspirin",
"vitamins",
"petroleum jelly."
] | C | MMLU_train | |
What contains carbon, hydrogen, and oxygen in a ratio of 1:2:1? | [
"magnesium",
"helium",
"carbohydrate",
"sodium"
] | C | The term carbohydrate comes from the fact that the majority contain carbon, hydrogen, and oxygen in a ratio of 1:2:1, making for an empirical formula of CH 2 O. This is somewhat misleading because the molecules are not actually hydrates of carbon at all. Carbohydrates are monomers and polymers of aldehydes and ketones ... | SCiQ_train |
Rahul went to a shop and bought things worth Rs. 30, out of which 40 Paise went on sales tax on taxable purchases. If the tax rate was 8%, then what was the cost of the tax free items? | [
"17.6",
"20.6",
"21.6",
"24.6"
] | D | Total cost of the items he purchased = Rs.30
Given that out of this Rs.30, 40 Paise is given as tax
=> Total tax incurred = 40 Paise = Rs.40/100
Let the cost of the tax free items = x
Given that tax rate = 8%
∴ (30−40/100−x)8/100 = 40/100
⇒ 8(30 −0.4−x) = 40
⇒ (30− 0.4 − x) = 5
⇒ x = 30 − 0.4 − 5 = 24.6.
B) | AquaRat_train |
The world's oceans are slowly getting more acidic, say scientists. The researchers from California say the change is taking place in response to higher levels of carbon dioxide in the atmosphere. The lowering of the waters' pH value is not great at the moment but could pose a serious threat to current marine life if it... | [
"the CO2 absorbed by the ocean",
"the acidity of the ocean",
"the amount of greenhouse warming",
"the gradual release of CO2"
] | C | MMLU_train | |
what is a simple way to determine the age a tree? | [
"by counting its branches",
"by counting its round inner markings",
"by counting its leaves",
"by counting its roots"
] | B | MMLU_train | |
If a tree falls then it is what? | [
"alive",
"expired",
"lush",
"growing"
] | B | MMLU_train | |
Three years ago the average age of a family of six members was 19 years. A boy have been born, the average age of the family is the same today. What is the age of the boy? | [
"1",
"3",
"6",
"9"
] | A | 6 * 22 = 132
7 * 19 = 133
--------------
1
Answer: A | AquaRat_train |
The number of protons in an atom is called what? | [
"metallic number",
"isotope",
"atomic number",
"mass number"
] | C | The atomic number is the number of protons in an atom. This number is unique for atoms of each kind of element. For example, the atomic number of all helium atoms is 2. | SCiQ_train |
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