question stringlengths 1 5.01k | choices listlengths 4 4 | answer stringclasses 4
values | support stringlengths 0 3.68k | source stringclasses 3
values |
|---|---|---|---|---|
Which type of eruptions created the entire ocean floor? | [
"fault eruptions",
"formation eruptions",
"lava effusion",
"fissure eruptions"
] | D | The most obvious landforms created by lava are volcanoes. These are mostly cinder cones, composite volcanoes, and shield volcanoes. Eruptions also take place through other types of vents, commonly from fissures ( Figure below ). The eruptions that created the entire ocean floor are essentially fissure eruptions. | SCiQ_train |
In the cardiovascular system, where is the ultimate destination of the oxygen-poor blood? | [
"lung",
"heart",
"brain",
"liver"
] | B | Systemic circulation is the longer loop of the cardiovascular system. It carries blood between the heart and the rest of the body. Oxygen-rich blood flows from the heart to cells throughout the body. As it passes cells, the blood releases oxygen and absorbs carbon dioxide. Then the oxygen-poor blood returns to the hear... | SCiQ_train |
Four hundred multiples of seven are chosen at random, and 100 multiples of eight are chosen at random. Approximately what percentage of the 500 selected numbers are odd? | [
"30%",
"60%",
"50%",
"40%"
] | D | --> Multiples of 7 are 7, 14, 21, 28, 35, 42....
Out of first 4 multiples, 2 are odd; out of first 6 multiples, 3 are odd.
So approx. 50 % of the 400 multiples are odd i.e 200 multiples.
--> Similalrly, for 8 multiples are:8,16,24...
All are even so 0 % are odd.
Total odd= (200+0)/(400+100)= 200/500=(2/5) = 40%
Answer ... | AquaRat_train |
What type of fertilization do most reptiles have? | [
"budding",
"external",
"internal",
"spawning"
] | C | Most reptiles reproduce sexually and have internal fertilization. They lay eggs on land and generally do not provide parental care. Reptile hatchlings look like miniature adults. They lack a larval stage and do not go through metamorphosis. | SCiQ_train |
A telephone number contains 10 digit, including a 3-digit area code. Bob remembers the area code and the next 5 digits of the number. He also remembers that the remaining digits are not 0, 1, 2, 5, 6, or 7. If Bob tries to find the number by guessing the remaining digits at random, the probability that he will be able ... | [
"1/8",
"1/32",
"1/2",
"1/16"
] | A | There are 4*4 = 16 possibilities.
Bob has 2 chances so the probability is 2/16 = 1/8.
The answer is C. | AquaRat_train |
In how many ways can the letters of the word EDUCATION be arranged? | [
"2520",
"2000",
"362880",
"2500"
] | C | EDUCATION has 9 words. Thus ways = 9! = 362880 ways
E | AquaRat_train |
How do plants most commonly break large rocks into smaller pieces? | [
"Plant leaves insulate surrounding rocks from extreme temperatures.",
"Plant roots grow into cracks in rocks.",
"Seeds from plants fall onto rocks and release acidic compounds.",
"Stems of plants surround and squeeze rocks."
] | B | MMLU_train | |
The global biosphere includes all areas of what? | [
"geography",
"study",
"life",
"science"
] | C | The global biosphere, which includes all areas that contain life, from the sea to the atmosphere. | SCiQ_train |
What is the release of particles and/or energy from the nucleus of an atom described as? | [
"radioactivity",
"momentum",
"kinetic energy",
"temperature"
] | A | Radioactivity involves the release of particles and/or energy from the nucleus of an atom. | SCiQ_train |
The parameter of a square is double the perimeter of a rectangle. The area of the rectangle is 480 sq cm. Find the area of the square. | [
"Cannot be determined",
"400",
"600",
"300"
] | A | Let the side of the square be a cm. Let the length and the breadth of the rectangle be l cm and b cm respectively.
4a = 2(l + b)
2a = l + b
l . b = 480
We cannot find ( l + b) only with the help of l . b. Therefore a cannot be found .
Area of the square cannot be found.
Answer: Option D | AquaRat_train |
Of the teams competing in the world archery championships, Ten percent are from Europe. Half as many are from the United States and one twentieth are from Africa. What fraction of teams are from neither Europe, the US or Africa. | [
"16/20",
"17/20",
"13/17",
"13/20"
] | A | Half as manymeans half of EU, then
EU 10%
US 5%
AF 5%
the rest is 50%, answer B | AquaRat_train |
President Barack Obama rode a bicycle at the White House Science Fair on April 22. But it wasn't an ordinary bike. As he pedaled, the President stayed in place, while the energy from his pedaling powered a water filtration system. He was testing an invention created by a team of 14 students from Northeast High School... | [
"It can move very fast.",
"It is extremely beautiful.",
"It is used to make water clean.",
"It is made of eco-friendly materials."
] | C | MMLU_train | |
Although fewer in number than chemical synapses, what type of synapses are found in all nervous systems and play important and unique roles? | [
"electrical synapses",
"beginning synapses",
"dual synapses",
"duplicating synapses"
] | A | Electrical Synapse While electrical synapses are fewer in number than chemical synapses, they are found in all nervous systems and play important and unique roles. The mode of neurotransmission in electrical synapses is quite different from that in chemical synapses. In an electrical synapse, the presynaptic and postsy... | SCiQ_train |
A solution of 66 litres contains milk and water in the ratio 7:x. If four litres of water is added to the solution, the ratio becomes 3:2, find the value of x? | [
"8",
"4",
"3",
"6"
] | B | Total new quantity = original sol + water =66+4 =70
New ratio = 3:2, New quantity of milk =3/5*70 = 42 Lit,
New quantity of water = 2/5*70 = 28 Lit
Water present initially = (28-4) = 24 Lit
Ratio = 42/24 =7/4 There for x = 4
ANSWER:D | AquaRat_train |
I'm Jack. I'm a middle school student. I have lessons from Monday to Friday. At weekends, I usually get up very late. I wash my face, brush my teeth and then go out to do morning exercises. I eat my breakfast at about nine o'clock. After that, I often go to the park with my parents. The park is a little far from our ho... | [
"His parents.",
"His brother.",
"His cousin.",
"His mother."
] | A | MMLU_train | |
A tempo, while travelling at 70 kmph, uses 30% more petrol than it uses while travelling at 50 kmph for travelling a certain distance. Using one litre of petrol, it can travel 19.5 km at 50 kmph. How far can the tempo travel on 10 litres of petrol at a speed of 70 kmph? | [
"170 kms",
"150 kms",
"160 kms",
"180 kms"
] | B | @50 kmph , one km distance uses 1/19.5 ltr petrol.
@70kmph, one km dist. uses 1.3/19.5 ltr petrol
Distance travelled with 10 ltrs @ 70kmph = 10*19.5/1.3= 150 kms.
ANSWER:A | AquaRat_train |
Donald was not very good at maths. He could not understand the teacher's explanations. Even when the teacher explained something a second time, Donald still could not understand it. "Never mind," Donald told himself. "I'm quite good at other subjects. I'll cheat in the maths exam, then I won't be in trouble." "I will s... | [
"both boys were good at maths",
"Donald cheated",
"Brian copied Donald's answers",
"the question were very easy"
] | B | MMLU_train | |
Special Bridges Help Animals Cross the Road ----Reported by Sheila Carrick Why did the chicken cross the road? To get to the other side. Most people know this joke.But recently, some people have been much more worried about how the grizzly bear and mountain lion can cross the road. "Millions of animals die... | [
"wild animals may attack cars",
"wild animals may jam the road",
"they may see wild animals in the park",
"they may see wild animals on ecopassages"
] | D | MMLU_train | |
if 5 boys take two hours to water the garden, then how long should 10 boys take to water the same type of garden? | [
"60 min",
"50 min",
"65 min",
"80 min"
] | A | if 5 boys take an hour to water the garden, then
10 boys will take 5*120/10 = 60 mins to water the same type of garden.
ANSWER:E | AquaRat_train |
A boy won the grand prize at the 2012 International Science and Engineering Fair, the largest high school science competition in the world. The Maryland teenager Jack Andraka is the youngest winner of the $75,000 prize. He was chosen from among l,500 students in 70 countries. Jack invented a test for pancreatic cancer... | [
"was not afraid of failure",
"was thought highly of by companies",
"impressed deeply on the professor",
"got support from others easily"
] | C | MMLU_train | |
Most of a mushroom's surface area is actually where? | [
"underground",
"hidden",
"underwater",
"air"
] | A | Fungi can grow fast because they are such good eaters. Fungi have lots of surface area, and this large surface area “eats” or absorbs. Surface area is how much exposed area an organism has, compared to their overall volume. Most of a mushroom's surface area is actually underground. If you see a mushroom in your yard, t... | SCiQ_train |
Which of the following helps the body to cool down? | [
"shivering",
"sweating",
"running a fever",
"taking deep breaths"
] | B | MMLU_train | |
If q and y are integers and (15^q + 15^(q+1))/4^y = 15^y what is the value of q? | [
"3",
"Cannot be determined",
"2",
"5"
] | C | \frac{15^q( 1+ 15)}{4^y} = 15^y
(15^q . 4^2 ) / 4^y = 15^y. 4^0
15^q . 4^(2-y) = 15^y. 4^0
Equating the powers, q = y; 2-y = 0; So q = y = 2=A | AquaRat_train |
In a 1000 m race, A beats B by 200 meters or 25 seconds. Find the speed of B? | [
"5 m/s",
"3 m/s",
"9 m/s",
"8 m/s"
] | D | Since A beats B by 200 m or 25 seconds, i
t implies that B covers 200 m in 25 seconds.
Hence speed of B = 200/25
= 8 m/s.
Answer:A | AquaRat_train |
What is another word for seed plants? | [
"gymnosperm",
"phyla",
"protosperm",
"echinoderm"
] | A | The most basic division is between nonvascular plants and vascular plants . Vascular plants are further divided into those that reproduce without seeds and those that reproduce with seeds. Seed plants, in turn, are divided into those that produce seeds in cones and those that produce seeds in the ovaries of flowers. Se... | SCiQ_train |
Reproduction produces | [
"bacteria",
"light",
"carrots",
"farrow"
] | D | MMLU_train | |
Unlike wild animals, what type of species are genetically uniform, making them more vulnerable to die-out from disease? | [
"domestic species",
"free-range species",
"urbane species",
"mammals"
] | A | Wild plants and animals maintain a valuable pool of genetic variation . This is important because domestic species are genetically uniform. This puts them at great risk of dying out due to disease. | SCiQ_train |
Everyone wants to have a healthy heart. Still, heart diseases affect more than 1 in 3 adults in the United States. The good news is that some simple, everyday habits can make a big difference in your ability to live a healthy lifestyle. Here are some worst habits for your heart, and how to avoid them. Watching TV Sitti... | [
"cut off from the world",
"get along well with others",
"stay alone as much as possible",
"drink no alcohol"
] | B | MMLU_train | |
What is thought to be the oldest eukaryotes? | [
"amoebas",
"protists",
"arthropods",
"prokaryotes"
] | B | Protists are eukaryotes in the Protist Kingdom. Most are single-celled organisms. Protists are thought to be the oldest eukaryotes. They probably evolved when some prokaryotic cells invaded or were engulfed by others. | SCiQ_train |
What does the distribution of darts on a dartboard shows the difference between? | [
"accuracy and precision",
"Aim and precision",
"production and precision",
"equilibrium and precision"
] | A | The distribution of darts on a dartboard shows the difference between accuracy and precision. | SCiQ_train |
A, B, C rent a pasture. A puts 10 oxen for 7 months, B puts 12 oxen for 5 months and C puts 15 oxen for 3 months for grazing. If the rent of the pasture is Rs. 175, how much must C pay as his share of rent? | [
"Rs. 45",
"Rs. 40",
"Rs. 55",
"Rs. 60"
] | A | A : B : C = (10 x 7) : (12 x 5) : (15 x 3) = 70 : 60 : 45 = 14 : 12 : 9.
C's rent = Rs. (175 x9/35) = Rs. 45.
THE CORRECT ANSWER IS A. | AquaRat_train |
There are three flat skeletal muscles in the antero-lateral wall of what? | [
"hip joint",
"shoulder socket",
"thoracic cavity",
"abdomen"
] | D | There are three flat skeletal muscles in the antero-lateral wall of the abdomen. The external oblique, closest to the surface, extend inferiorly and medially, in the direction of sliding one’s four fingers into pants pockets. Perpendicular to it is the intermediate internal oblique, extending superiorly and medially, t... | SCiQ_train |
Do you know why different animals or pests have their special colours? Colours in them seem to be used mainly to protect themselves. Some birds like eating locusts. but birds cannot easily catch them. Why? It is because locusts change their colours together with the change of the colours of crops. When crops are green,... | [
"are small animals",
"are easily found by birds",
"are dangerous to their enemies",
"change their colours to protect themselves"
] | D | MMLU_train | |
When naming this type of ion the ending of the element’s name is dropped and replaced with the – ide suffix? | [
"oxides",
"amines",
"anions",
"cations"
] | C | Naming anions is slightly different than naming cations. The ending of the element’s name is dropped and replaced with the – ide suffix. For example, F - is the fluoride ion, while O 2- is the oxide ion. As is the case with cations, the charge on the anion is indicated by a superscript following the symbol. Common anio... | SCiQ_train |
In the mouth, enzymes present in what begin to chemically break down food? | [
"saliva",
"lymph",
"acid",
"blood"
] | A | The Human Digestive System The process of digestion begins in the mouth with the intake of food (Figure 16.4). The teeth play an important role in masticating (chewing) or physically breaking food into smaller particles. The enzymes present in saliva also begin to chemically break down food. The food is then swallowed ... | SCiQ_train |
Aish started a business investing Rs. 25,000 in 2010, In 2011, he invested an additional amount of Rs. 10,000 and Roshan joined him with an amount of Rs. 35,000. In 2012, Aish invested another additional amount of Rs. 10,000 and Atul joined them with an amount of Rs. 35,000. What will be Roshan’s share in the profit of... | [
"Rs.50000",
"Rs.45000",
"Rs.90000",
"None of these"
] | C | Explanation :
Aish : Roshan : Atul
= (25000 x 12 + 35000 x 12 + 45000 x 12) : (35000 x 24) : (35000 x 12)
= 1260000 : 840000 : 420000 = 3 : 2 : 1
Roshan's share = Rs. 270000 x 2/6
= Rs. 90000.
Answer : D | AquaRat_train |
What are animals that live with tiny zooxanthellae that also photosynthesize? | [
"worms",
"coral",
"fungi",
"bacteria"
] | B | What's at the bottom of the food chain? A bit of the food energy comes from above, where plankton photosynthesize. Most comes from the coral. Coral are animals that live with tiny zooxanthellae that also photosynthesize. Of course, you know what's at the top of this food chain!. | SCiQ_train |
What gas associated with global warming is released when limestone is heated during the production of cement? | [
"hydrogen",
"carbon dioxide",
"carbon monoxide",
"oxygen"
] | B | Carbon dioxide is released when limestone is heated during the production of cement. | SCiQ_train |
If integers ending in zero are excluded, what is the unit digit of the product of the even integers from 402 to 498, inclusive? | [
"2",
"4",
"5",
"6"
] | D | 402 x 404 x 406 x 408 => unit digit 4
412 x 414 x 416 x 418 => unit digit 4
492 x 494 x 496 x 498 => unit digit 4
So we have 10 numbers ending by 4 to multiply.
Given that 4 x 4 = 16, we have 5 numbers ending by 6 to multiply
Given that 6 x 6 = 36, we have 3 numbers ending by 6 to multiply
So the unit digit is 6
Answer... | AquaRat_train |
A strong magnet will separate a mixture of | [
"clear glass and green glass.",
"paper cups and plastic cups.",
"iron nails and aluminum nails.",
"sand and salt."
] | C | MMLU_train | |
The best thermal conductors are also the best conductors of what, which is also related to the density of free electrons in them? | [
"light",
"pollution",
"sound",
"electricity"
] | D | Note that in Table 14.3, the best thermal conductors—silver, copper, gold, and aluminum—are also the best electrical conductors, again related to the density of free electrons in them. Cooking utensils are typically made from good conductors. | SCiQ_train |
Activities that can reduce the effects of what condition include exercises to keep the blood and lymph flowing through affected areas? | [
"anemia",
"edema",
"inflammation",
"asthma"
] | B | Medications that can result in edema include vasodilators, calcium channel blockers used to treat hypertension, nonsteroidal anti-inflammatory drugs, estrogen therapies, and some diabetes medications. Underlying medical conditions that can contribute to edema include congestive heart failure, kidney damage and kidney d... | SCiQ_train |
The captain of a cricket team of 11 members is 26 years old and the wicket keeper is 3 years older. If the ages of these two are excluded, the average age of the remaining players is one year less than the average age of the whole team. What is the average age of the team? | [
"25 years",
"23 years",
"27 years",
"24 years"
] | B | EXPLANATION
Let the average age of the whole team by x years.
11x – (26 + 29) = 9(x -1)
11x – 9x = 46
2x = 46
x = 23.
So, average age of the team is 23 years.
Answer A | AquaRat_train |
Sarah was ill, she went to see the doctor. " Doctor, I'm not feeling well," she said. " Every time I do my homework, I feel tired. If I go to school on foot, I have to sit down and rest for ten minutes." The doctor looked at her carefully. At last he said, " Nothing much. But I'm afraid you are eating too much." "I ... | [
"by bike",
"by bus",
"by car",
"on foot"
] | D | MMLU_train | |
What was the last supercontinent on earth? | [
"pangaea",
"rodinia",
"laurasia",
"eurasia"
] | A | There are times in Earth history when all of the continents come together to form a supercontinent . Supercontinents come together and then break apart. Pangaea was the last supercontinent on Earth, but it was not the first. The supercontinent before Pangaea is called Rodinia. Rodinia contained about 75% of the contine... | SCiQ_train |
There are 8436 steel balls, each with a radius of 1 cm, stacked in a pile, with 1 ball on top, 3 balls in the second layer, 6 in the third layer, 10 in the fourth and so on. the number of horizontal layer on the pile is | [
"None",
"34",
"36",
"38"
] | C | Explanation :
Assume the number of layers in horizontal pile is n.
So, Σn(n+1)/2 = 8436.
=> (1/2) [ Σn2 + Σn ] = 8436.
=> n(n+1)(n+2)/12 +n(n+1)/4 = 8436.
=> n(n +1) [(2n + 4) / 12 ] = 8436.
=> n(n +1)(n+2) / 6 = 8436.
=> n(n +1)(n+2) = 36 x 37 x 38.
So, n=36.
Answer : C | AquaRat_train |
A rectangular room has the rectangular shaped rug shown as above figure such that the rug’s area is 220 square feet and its length is 12 feet longer than its width. If the uniform width between the rug and room is 12 feet, what is the area of the region uncovered by the rug (shaded region), in square feet? | [
"104",
"32",
"1344",
"40"
] | C | Rug's area = 220
which is (x) x (12+x) = 220
so x= 10
rug maintains a uniform distance of 12 feet
so room has dimension 10+24 and 22+24 i.e. 34 and 46
area of room 34x46 = 1564
area covered is 120
so uncovered area is 1564-220=1344 (ANSWER D) | AquaRat_train |
Starch is a large, complex carbohydrate made of thousands of _____ joined together? | [
"glucose partitions ( monomers )",
"glucose units (monomers)",
"glucose divisions ( monomers )",
"glucose orders ( monomers )"
] | B | Starch is a large, complex carbohydrate made of thousands of glucose units (monomers) joined together. Starches are found in foods such as vegetables and grains. Starches are broken down by the body into sugars that provide energy. Breads and pasta are good sources of complex carbohydrates. | SCiQ_train |
By selling 16 pens for a rupee a woman loses 5%. How many for a rupee should he sell in order to gain 18%? | [
"13",
"14",
"45",
"12"
] | A | D
95% --- 16
118% --- ?
95/118 * 16 = 13 | AquaRat_train |
125.62+6.325+14.4=? | [
"125.69",
"146.345",
"222.569",
"784.36"
] | B | 125.62
6.325
14.4
----------
146.345
Answer is C | AquaRat_train |
The time taken by a man to row his boat upstream is twice the time taken by him to row the same distance downstream. If the speed of the boat in still water is 57 kmph, find the speed of the stream? | [
"19",
"12",
"88",
"17"
] | A | The ratio of the times taken is 2:1.
The ratio of the speed of the boat in still water to the speed of the stream = (2+1)/(2-1) = 3/1 = 3:1
Speed of the stream = 57/3 = 19 kmph.
Answer:A | AquaRat_train |
Which of the following equations has a solution in common with x^2 - 7x + 10 = 0 ? | [
"none of the above",
"x^2 - 3x - 10 = 0",
"4x^2 + 9x + 2 = 0",
"4x^2 + 6x + 2 = 0"
] | B | Given : x^2 - 7x + 10 = 0 => (x-2) (x-5) = 0 => 2 and 5 are the roots..
A. x^2 - 3x - 10 = 0 => (x+2) (x-5)
B. 4x^2 + 9x + 2 = 0 => (4x+1) (x+2)
C. 4x^2 + 6x + 2 = 0 => (2x+1) (2x+2)
D. x^2 + 10x + 25 = 0 => (x+5) (x+5)
None of the answer equations have exactly both the same roots as the question equation, but at least... | AquaRat_train |
Once upon a time, a horse, a cow, a ox, and a donkey were playing outside when they got really hungry. So, they went to a drive-in to get some lunch. The horse ordered a cheeseburger. The cow ordered a chili dog. The ox ordered a chicken sandwich. And the donkey ordered a fish sandwich. The horse ordered fries. The cow... | [
"the cow",
"the donkey",
"the horse",
"the ox"
] | B | MMLU_train | |
When positive integer k is divided by 5, the remainder is 2. When k is divided by 6, the remainder is 5. If k is less than 42, what is the remainder when k is divided by 7? | [
"5",
"6",
"10",
"3"
] | D | Cant think of a straight approach but here is how I solved it:
K is divided by 5 and remainder is 2. This means k = 5n + 2 (n is an integer)
so the possible values of K = {2, 7, 12, 17, 22, 27, 32, 37} (less than 42)
Secondly, if K is divided by 6, the remainder is 5 => k= 6m + 5
so the possible value set for k = {5, 1... | AquaRat_train |
How many two letter words are formed using the letters of the word BOOK? | [
"9",
"3",
"12",
"6"
] | C | The number of letters in the given word is four.
The number of TWO letter words that can be formed using these four letters is 4P2 = 4 * 3 = 12.
Answer:A | AquaRat_train |
If money is invested at r percent interest, compounded annually, the amount of investment will double in approximately 70/r years. If Pat's parents invested $ 5000 in a long term bond that pays 8 percent interest, compounded annually, what will be the approximate total amount of investment 18 years later, when Pat is r... | [
"$10000",
"$12000",
"$9000",
"20000 dollars"
] | D | Since investment doubles in 70/r years then for r=8 it'll double in 70/8=~9 years (we are not asked about the exact amount so such an approximation will do). Thus in 18 years investment will double twice and become ($5,000*2)*2=$20,000 (after 9 years investment will become $5,000*2=$10,000 and in another 9 years it'll ... | AquaRat_train |
The idea of being able to walk on water has long interested humans greatly. Sadly, biological facts prevent us ever accomplishing such a thing without artificial aid--we simply weigh too much, and all our mass pushes down through our relatively small feet, resulting in a lot of pressure that makes us sink. However, sev... | [
"are not interested in it",
"have biological limitations",
"have not invented proper tools",
"are afraid to make an attempt"
] | B | MMLU_train | |
Google Glass, a wearable computer, will not go on sale for many months. But the resistance is already under way. The glasses-like device, which allows users to access the Internet, take photos and shoot videos, has been banned by a bar in Seattle, because according to the bar' owner, the bar was "kind of a private plac... | [
"Google Glass is an immature product.",
"They are acting cautiously in designing Google Glass.",
"People can take photos without eyeing the objects.",
"Google Glass is just as normal as a smart phone."
] | C | MMLU_train | |
Cindy paddles her kayak upstream at c kilometers per hour, and then returns downstream the same distance at n kilometers per hour. How many kilometers upstream did she travel if she spent a total of p hours for the round trip? | [
"cnp/(c + n)",
"cnp",
"(c + n)/p",
"pm/n- pn/m"
] | A | let t1 and t2 be the time taken to row upstream and downstream respectively
now,
t1=distance/speed=d/c
similarly,
t2=d/n (as same distance has to be rowed)
also,
t1+t2=p
therefore,
p=(d/c)+(d/n)
=d(c+n)/cn
d=pcn/(c+n)=D | AquaRat_train |
What type of organism is a bacteria? | [
"fungi",
"paramecium",
"single-celled prokaryotic",
"multicellular organism"
] | C | The single-celled prokaryotic organism otherwise known as bacteria. And all it takes is one to quickly grow, under just the right conditions, into millions and billions. Luckily, we know how to control bacteria when necessary. But bacteria do serve many important purposes. In fact, we could not survive without them. | SCiQ_train |
Which statement best identifies a basic need of all animals? | [
"They need to eat.",
"They need to hide.",
"They need to jump.",
"They need to smell."
] | A | MMLU_train | |
One hour after Yolanda started walking from X to Y, a distance of 17 miles, Bob started walking along the same road from Y to X. If Yolanda's walking rate was 3 miles per hour and Bobт's was 4 miles per hour, how many miles had Bob walked when they met? | [
"8",
"23",
"24",
"21"
] | A | When B started walking Y already has covered 3 miles out of 17, hence the distance at that time between them was 17-3=14 miles.
Combined rate of B and Y was 3+4=7 miles per hour, hence they would meet each other in 14/7=2 hours. In 6 hours B walked 2*4=8 miles.
Answer: E. | AquaRat_train |
Where is glycogen created and stored in the body? | [
"extracts and muscles",
"Healing Muscles",
"Sore muscle",
"liver and muscles"
] | D | Connections of Other Sugars to Glucose Metabolism Glycogen, a polymer of glucose, is an energy storage molecule in animals. When there is adequate ATP present, excess glucose is shunted into glycogen for storage. Glycogen is made and stored in both liver and muscle. The glycogen will be hydrolyzed into glucose monomers... | SCiQ_train |
P can do the work in 8 days and Q can do the same work in 12 days. If they work together for 4 days, what is the fraction of work that is left? | [
"2/15",
"1/6",
"1/5",
"2/11"
] | B | 4/8 + 4/12 = 1/2 + 1/3 = 5/6 (completed work)
The work that is left is 1 - 5/6 = 1/6
The answer is E. | AquaRat_train |
Find the number which when added to itself 13 times, gives 112. | [
"9",
"12",
"8",
"7"
] | C | Explanation:
Let the number be x. Then, x + 13x = 112 14x = 112 x = 8.
Answer: B | AquaRat_train |
During sexual reproduction, the macronucleus dissolves and is replaced by what? | [
"sporozoans",
"chromosomes",
"fluctuations",
"micronucleus"
] | D | Figure 23.16 The complex process of sexual reproduction in Paramecium creates eight daughter cells from two original cells. Each cell has a macronucleus and a micronucleus. During sexual reproduction, the macronucleus dissolves and is replaced by a micronucleus. (credit “micrograph”: modification of work by Ian Sutton;... | SCiQ_train |
When it comes to movies, we usually think of big actors, big budgets, big screens, and, if lucky, big profits. Unfortunately, that puts up some big barriers for aspiring young filmmakers and their dreams. However, thanks to easy access to technology, that's all changing. All one really needs nowadays is a camera, a c... | [
"A look at microfilms",
"The challenge of big films",
"A new class project",
"The secret of successful microfilms"
] | A | MMLU_train | |
When two plates of continental crust collide, the material pushes upward and forms what? | [
"valleys",
"low mountain range",
"fault lines",
"high mountain range"
] | D | When two plates of continental crust collide, the material pushes upward. This forms a high mountain range. The remnants of subducted oceanic crust remain beneath the continental convergence zone. | SCiQ_train |
When the air temperature reaches the dew point, water vapor starts to do what? | [
"evaporate",
"dissipate",
"germinate",
"condense"
] | D | A: When air temperature reaches the dew point, water vapor starts condensing. It may form dew (as on the spider web in the opening image), clouds, or fog. Dew forms on solid objects on the ground. Clouds form on tiny particles in the air high above the ground. Fog is a cloud that forms on tiny particles in the air clos... | SCiQ_train |
Weathering is fundamental to the creation of what, which exists as a very thin layer over solid rock? | [
"aquifers",
"moss",
"fungus",
"soil"
] | D | Without weathering, we would not have any soil on Earth. People could not live on Earth without soil! Your life and the lives of most organisms depend on soil. Soil is only a very thin layer over solid rock. Yet, it is the place where reactions between solid rock, liquid water and air take place. We get wood, paper, co... | SCiQ_train |
About one-fourth of the blood pumped with each heartbeat enters arteries serving what organs of digestion? | [
"lungs",
"intestines",
"stomach",
"bowels"
] | B | Blood Supply The blood vessels serving the digestive system have two functions. They transport the protein and carbohydrate nutrients absorbed by mucosal cells after food is digested in the lumen. Lipids are absorbed via lacteals, tiny structures of the lymphatic system. The blood vessels’ second function is to supply ... | SCiQ_train |
What proteins span the entire plasma membrane? | [
"transmembrane",
"sequence",
"amino acids",
"cytoplasm"
] | A | Transmembrane proteins span the entire plasma membrane. Their function is mainly to regulate the transport of specific molecules across the membrane. There are two basic types of transmembrane proteins, alpha-helical and beta-barrels, which are discussed in Organic Compounds: Proteins (Advanced) . | SCiQ_train |
At what rate percent per annum will the simple interest on a sum of money be 1/5 of the amount in 10 years? | [
"9%",
"3%",
"2%",
"7%"
] | C | Let sum = x. Then, S.I. = x/5, Time
= 10 years.
Rate = (100 * x) / (x * 5 * 10)
= 2%
Answer: A | AquaRat_train |
If there is exactly one root of the equation x^2 + ax - b, where a and b are positive constants, what is b in terms of a? | [
"a^2/4",
"-a^2/4",
"a/2",
"a"
] | B | one root for a quadratic equation ax^2+bx+c is possible only when b^2 = 4ac ---1
Here b = a
c= b
a = 1
substituting these values in 1, we have
a^2 = -4b => b =-a^2/4
Answer is C. | AquaRat_train |
If p ≠ 1 and if qp/(q - p) = 1, what is the value of q in terms of p? | [
"(p+1)/p",
"(p - 1)/p",
"p/(1-p)",
"(1 - p)/p"
] | C | This question comes with a particular 'quirk' (one that you probably won't see on Test Day). The GMAT won't test you on the concept of undefined numbers (re: numbers divided by 0), so any time that this concept is a possibility, the question writers have to add a restriction that removes the option that a 0 could occur... | AquaRat_train |
Radiometric dating methods, such as carbon-14 dating depend on what type of decay? | [
"nuclear",
"carbon",
"radioactive",
"microwave"
] | C | The age of a rock in years is its absolute age. The main evidence for absolute age comes from radiometric dating methods, such as carbon-14 dating. These methods depend on radioactive decay. | SCiQ_train |
Which one of the following is a prime number? | [
"49",
"10",
"61",
"75"
] | C | 61 is divisible by 1, and itself. So, it is a prime number.
B | AquaRat_train |
Which object would have more tightly packed matter | [
"gold",
"gas",
"wood",
"water"
] | A | MMLU_train | |
The minute hand of a clock overtakes the hour hand at intervals of 65 minutes of the correct time. How much a day does the clock gain or lose? | [
"(10 + 10/843 )min",
"(90 + 10/143 )min",
"(10 + 10/193 )min",
"(10 + 10/143 )min"
] | D | In a correct clock, the minute hand gains 55 min. spaces over the hour hand in 60 minutes.
To be together again, the minute hand must gain 60 minutes over the hour hand.
55 minutes are gained in 60 min.
60 min. are gained in [(60/55) * 60] min = min.
But they are together after 65 min.
Therefore, gain in 65 minutes = =... | AquaRat_train |
Scientists have not come close to understanding all the different kinds of life on the planet, but US researcher Craig Venter is already working on creating the first artificial life. Venter and his researchers made a breakthrough this August. They successfully moved the DNA of one type of bacteria to a yeast cell, c... | [
"Venter and his team are the only scientists trying to create artificial life",
"The experiment was based on research into different kinds of life on Earth",
"A new type of bacteria was created in January",
"All scientists are not in favor of the research"
] | D | MMLU_train | |
If 12 men and 16 boys can do a piece of work in 5 days; 13 men and 24 boys can do it in 4 days, then the ratio of the daily work done by a man to that of a boy is? | [
"1:1",
"5:1",
"3:1",
"2:1"
] | D | B
2:1
Let 1 man's 1 day work = x and 1 boy's 1 day work = y.
Then, 12x + 16y = 1/5 and 13x + 24y = 1/4
Solving these two equations, we get:
x = 1/100 and y = 1/200
Required ratio = x:y = 1/100 : 1/200 = 2:1. | AquaRat_train |
What is the star-like structure inside the paramecia? | [
"the contractile vacuole",
"the reflex vacuole",
"the baré vacuole",
"the elongated vacuole"
] | A | The contractile vacuole is the star-like structure within the paramecia. | SCiQ_train |
What is the term for an ionic compound that produces positive hydrogen ions when dissolved in water? | [
"sulfur",
"base",
"acid",
"hydrocarbon"
] | C | An acid is an ionic compound that produces positive hydrogen ions when dissolved in water. Acids taste sour and turn blue litmus paper red. | SCiQ_train |
A sun is divided among X, Y and Z in such a way that for each rupee X gets, Y gets 50 paisa and Z gets 40 paisa. If the share of X is RS. 30, what is the total amount? | [
"67",
"57",
"47",
"62"
] | B | x:y:z = 100:50:40
10:5:4
10 --- 30
19 --- ? => 57
Answer: E | AquaRat_train |
Like mammals and birds, and unlike other reptiles, crocodiles have how many chambers in their heart? | [
"four",
"two",
"one",
"six"
] | A | Like mammals and birds, and unlike other reptiles, crocodiles have a four-chambered heart. But, unlike mammals, blood with and without oxygen can be mixed. | SCiQ_train |
The ratio between x and y is 7/9; x is increased by 4 and y is decreased by 4, what is the ratio between the new values of x and y? | [
"14/9",
"7/9",
"11/13",
"It Cannot Be Determined"
] | D | Ratio = 7k/9k = 7/9, 14/18, etc.
x is increased by 4 and y is decreased by 4--> (7k + 4)/(9k - 4)
New ratio can be 11/15, 18/14, etc.
Answer: E | AquaRat_train |
A science book gives facts. Some science books tell us about animals. Some tell us about plants. Some tell us about outer space. This page tells us about animals. Do you know that not only the fish but also some animals live in the sea? For example, the whale is not a fish. It can't breathe in the water. It swims in th... | [
"Meat.",
"Fruits.",
"Both fish and sea plants.",
"Leaves."
] | C | MMLU_train | |
What factors determine the effect of a gene? | [
"ribosomes",
"metabolites",
"alleles",
"genomes"
] | C | For example, remember that for the height gene in pea plants there are two possible factors. These factors are alleles. There is a dominant allele for tallness (T) and a recessive allele for shortness (t) . | SCiQ_train |
Lions are big and strong.They have bright eyes, sharp teeth and black points on their brown bodies.So they look beautiful. Lions can run fast.They are good at catching other animals.Lions like living as a family until baby lions are 2 years old.A lion lives alone during most of its life. Now, many hunters hurt lions fo... | [
"Black",
"Brown",
"Blue",
"White"
] | A | MMLU_train | |
Obligate anaerobes live and grow in the absence of what? | [
"molecular carbon",
"molecular nitrogen",
"molecular oxygen",
"atomic oxygen"
] | C | Visit this site (http://openstaxcollege. org/l/fermentation2) to see anaerobic cellular respiration in action. Other fermentation methods occur in bacteria. Many prokaryotes are facultatively anaerobic. This means that they can switch between aerobic respiration and fermentation, depending on the availability of oxygen... | SCiQ_train |
What forms when a sperm fertilizes and egg? | [
"crystals",
"cytoplasm",
"zygote",
"proton"
] | C | SCiQ_train | |
Recognition of pathogens is a function of what type of response? | [
"hormones",
"digestion",
"inhalation",
"immune"
] | D | Recognition of Pathogens Cells of the innate immune response, the phagocytic cells, and the cytotoxic NK cells recognize patterns of pathogenspecific molecules, such as bacterial cell wall components or bacterial flagellar proteins, using pattern recognition receptors. A pattern recognition receptor (PRR) is a membrane... | SCiQ_train |
Found in many products, such as petri dishes, agar is made from mucilagnious material in this? | [
"fungi",
"gelatin",
"seawater",
"seaweed"
] | D | Protists Practice Questions 3. Found in many products, such as Petri dishes, agar is made from mucilagnious material in seaweed. Of the six phyla of algae, which phyllum/phyla would agar be made from? 4. Which of the following adjectives describe the major food source of Euglenophytes without an eyespot? a) photoautotr... | SCiQ_train |
Jane makes toy bears. When she works with an assistant, she makes 80 percent more bears per week and works 10 percent fewer hours each week. Having an assistant increases Jane’s output of toy bears per hour by what percent R? | [
"100%",
"180%",
"200%",
"80%"
] | A | C.
Let's assume just Jane 40 bears per 40/hrs a week, so that is 1 bear/hr. With an assistant she makes 72 bears per 36 hours a week or 2 bears/hr ([40 bears * 1.8] / [40 hrs * .90]).
R=[(2 - 1)/1] * 100% = 100%.C | AquaRat_train |
At a convergent plate boundary, when one plate is oceanic, there are large what? | [
"plateaus",
"volcanoes",
"lakes",
"earthquakes"
] | B | At a convergent plate boundary, when one plate is oceanic, there are large volcanoes. These volcanoes are found in lines that outline the subduction zone. Earthquakes also happen in these zones. The Aleutian Islands that border southern Alaska are an island arc. In this winter image from space, the volcanoes are covere... | SCiQ_train |
At Company X, senior sales representatives visit the home office once every 18 days, and junior sales representatives visit the home office once every 12 days. The number of visits that a junior sales representative makes in a 2-year period is approximately what percent greater than the number of visits that a senior r... | [
"50%",
"33%",
"67%",
"10%"
] | A | Each 36-day period, senior representatives visit the home office 2 times while junior representatives visit 3 times, thus 50% more.
The answer is D. | AquaRat_train |
December usually marks the start of humpback whale season in Hawaii. But experts say the animals have been slow to return. The giant whales are an iconic part of winter on the islands and a source of income for tour operators. But officials at the Hawaiian Islands Humpback Whale National Marine Sanctuary said they've b... | [
"The migration habit of whales.",
"Why the whales are slow to return.",
"How El Nino slows whale migration down.",
"Worries about the slowdown of whale migration."
] | B | MMLU_train | |
Two trains of equal length are running on parallel lines in the same direction at 46 km/hr and 36 km/hr. The faster train catches and completely passes the slower train in 18 seconds. What is the length of each train (in meters)? | [
"35",
"65",
"25",
"50"
] | C | The relative speed = 46 - 36 = 10 km/hr = 10 * 5/18 = 25/9 m/s
In 18 seconds, the relative difference in distance traveled is 18 * 25/9 = 50 meters
This distance is twice the length of each train.
The length of each train is 50/2 = 25 meters
The answer is B. | AquaRat_train |
On dividing 16698 by a certain number, we get 89 as quotient and 14 as remainder. What is the divisor? | [
"743",
"154",
"741",
"187"
] | D | Divisor *quotient+remainder=dividend
divisor=(dividend)-(remainder)/quotient
(16698-14)/89=187
Answer(C) | AquaRat_train |
How long does a train 110metres long running at the speed of 72 km/hr take to cross a bridge 132metres in length? | [
"12.1",
"21.5",
"31.2",
"11.1"
] | A | speed = 72*5/18 = 20m/s
total distance covered = 110+132 = 242m
required time = 242/20 = 12.1 sec
Answer is C | AquaRat_train |
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