id
string
dataset
string
question
string
options
list
answer
string
explanation
string
aquarat_14319
aquarat
50 square stone slabs of equal size were needed to cover a floor area of 72 sq.m. Find the length of each stone slab?
[ "A)120cm", "B)767cm", "C)88cm", "D)666cm" ]
A
Area of each slab =72/50m2=1.44m2 Length of each slab √1.44=1.2m=120cm
openbookqa_343
openbookqa
What shows that crumpling is to change something from being smooth into a compacted shape by physical force?
[ "folding a piece of paper into a shape", "crushing a can in your hand", "squishing a smooth bug", "ripping up a piece of paper" ]
B
qasc_7595
qasc
are used to repair cells by the human body
[ "prolactin release", "Biomolecules", "food and shelter", "pituitary" ]
B
openbookqa_868
openbookqa
Leaving remain oil supplies alone is a form of
[ "conservation", "deliberation", "transportation", "pollution" ]
A
qasc_5558
qasc
What have no backbone?
[ "insects", "mammals", "arthropods", "humans" ]
C
qasc_4040
qasc
What happens to ice in water?
[ "it evaporates", "it sinks", "it floats.", "it expands" ]
C
aquarat_9971
aquarat
Jaylen was planning to save all summer for a pair of Jordan 12s. They cost $250. Jaylen figured that he could cut grass to help with the cost of the sneakers. How many yards would Jaylen have to cut if he charges $2.15 per yard?
[ "A)116 yards", "B)226 yards", "C)97 yards", "D)115.74 yards" ]
D
D
aquarat_42989
aquarat
If 7 cats can kill 7 rats in 7 minutes, how long will it take 100 cats to kill 100 rats?
[ "A)5 minutes", "B)6 minutes", "C)7 minutes", "D)8 minutes" ]
C
It will take 7 minutes for 100 cats to kill 100 rats. 1 cat can kill 1 rat in 7 minutes, so 100 cats can kill 100 rats in 7 minutes Answer C
pubmedqa_743
pubmedqa
Does cognitive function predict frequency compressed speech recognition in listeners with normal hearing and normal cognition?
[ "yes", "no", "maybe" ]
B
aquarat_12486
aquarat
The wages earned by Robin is 30% more than that earned by Erica. The wages earned by Charles is 60% more than that earned by Erica. How much percent is the wages earned by Charles more than that earned by Robin?
[ "A)18.75%", "B)23%", "C)30%", "D)50%" ]
B
Let wage of Erica = 10 Wage of Robin = 1.3*10 = 13 Wage of Charles = 1.6 *10 = 16 Percentage by which wage earned by Charles is more than that earned by Robin = (16-13)/13 * 100% = 3/13 * 100% =23% Answer B
aquarat_12471
aquarat
Arabica coffee costs $0.4 per ounce while Robusta coffee costs $0.2 per ounce. If the blend of Arabica and Robusta costs $0.33 per ounce, what is the share of Arabica in this blend?
[ "A)20%", "B)65%", "C)30%", "D)33%" ]
B
a= amount of arabica coffee 1-a = amount of robusta coffee. because if you subtract a from the 1 ounce, the remaining amount is robusta therefore: .4a + .2(1-a) = .33 .4a + .2 - .2a = .33 a= .65 therefore: .65/1 ounce = 65%. Therefore, the answer should be B
openbookqa_729
openbookqa
You can find ferrous metals in
[ "Grass", "Vehicle scraps", "Wood", "Glass" ]
B
aquarat_34681
aquarat
The interest on Rs. 750 for 2 years is the same as the true discount on Rs. 960 due 2 years hence. If the rate of interest is the same in both cases, it is:
[ "A)18%", "B)14%", "C)94%", "D)11%" ]
B
S.I. on Rs. 750 = T.D. on Rs. 960. This means P.W. of Rs. 960 due 2 years hence is Rs. 750. T.D. = Rs. (960 - 750) = Rs. 210. Thus, S.I. on R.s 750 for 2 years is Rs. 210. Rate = 100 x 210 % = 14% 750 x 2 Answer: B
aquarat_16048
aquarat
If the speed of X inch per second is equivalent to the speed of Y foot per hour, what is Y in terms of X? (1 foot =12 inch)
[ "A)120X", "B)240X", "C)360X", "D)300X" ]
D
X inch per second --> --> 3,600X inch per hour(as there are 3,600 seconds in one hour); --> 3,600X/12 = 300X foot per hour (as there are 12 inches in one foot). Answer: D.
aquarat_47192
aquarat
Josiah had $42,895.39 in his savings account. He wanted to make a $10,000 deposit on a new car. The car was priced at $85,216.78. The interest rate that Josiah will be paying back, for having the vehicle financed, is 8.99%. What is the total amount that Josiah would have paid on the total cost (including financed amoun...
[ "A)92,877.77", "B)100,562.31", "C)1.29", "D)120,261.53" ]
A
A
mmlu_aux_4497
mmlu_auxiliary
An energy watchdog is alarmed about the threat to the environment from the increasing electricity needs of gadgets like MP3 players, mobile phones and flat screen TVs. In a report today, the Paris-based International Energy Agency says new electronic gadgets will be three times their energy consumption by 2030 to 1,700...
[ "Nearly l, 700.", "Nearly 600.", "About 200.", "About 60." ]
B
null
aquarat_28263
aquarat
A man can row three - quarters of a kilometer against the stream in 11¼minutes. The speed(in km/hr) of the man in still water is
[ "A)2", "B)3", "C)4", "D)5" ]
D
Solution Rate upstream = (750 / 675)m/sec = (10 / 9) m/ sec. Rate downstream = (750 / 450) =(5 / 3) m/sec Rate in still water = 1/2(10 /9 + 5/3) = (25/18x18/5)km/hr = 5 km/hr. Answer D
aquarat_33988
aquarat
In a class there are 19 boys and 10 girls. In how many ways can a boy and a girl be selected?
[ "A)288", "B)500", "C)277", "D)190" ]
D
We can select one boy from 19 boys in 19 ways. We select one girl from 10 girls in 10 ways We select a boy and girl in 19 * 10 ways i.e., = 190 ways. Answer: D
aquarat_23724
aquarat
The banker’s gain on a sum due 3 years hence at 12% per annum is Rs. 270. The banker’s discount is
[ "A)Rs.960", "B)Rs.840", "C)Rs.1020", "D)Rs.760" ]
C
Solution T.D =(B.G x 100 / R x T) = Rs.(270x100/12 x 3) = Rs.750. B.D =Rs(750 + 270) = Rs.1020. Answer C
mmlu_aux_2082
mmlu_auxiliary
There are two types of twins; identical and non-identical twins. Identical twins are formed from a single egg in mother's body which divides to from two separate babies. Identical twins look the same, and are often dressed by their parents in clothes of the same colors. It is often difficult to tell identical twins fro...
[ "the main types of twins", "what has been found out about twins", "how twins are formed", "how a scientist studied twins" ]
B
null
qasc_3762
qasc
Emission from cars contribute to which weather phenomenon?
[ "smog tornadoes", "acid rain", "deforestation", "flooding" ]
B
aquarat_47474
aquarat
Jack and Jill work at a hospital with 5 other workers. For an internal review, 2 of the 7 workers will be randomly chosen to be interviewed. What is the probability that Jack and Jill will both be chosen?
[ "A) 1/3", "B) 1/4", "C) 1/21", "D) 3/8" ]
C
1/7C2=1/21. Answer: C.
openbookqa_521
openbookqa
A refrigerator
[ "requires an electrical outlet to work", "requires an ice maker to work", "requires AA batteries to work", "requires a crisper to work" ]
A
medmcqa_4229
medmcqa
22-year-old lady, with a history of epilepsy is undergoing the pre-anaesthetic review. The use of which inhalational agent is contraindicated in this patient?
[ "Halothane", "Enflurane", "Sevoflurane", "Isoflurane" ]
B
Enflurane can precipitate generalized tonic clonic seizure in epileptics. It is however safer than halothane, causes less myocardiac depression and less hypotension.
mmlu_aux_5273
mmlu_auxiliary
An astronaut's work may sound exciting, but living in space isn't as fun as you think. The website www.space.com lists the disadvantages of living in space. Here are some of them. When astronauts work outside the station during spacewalks, they have to wear special gloves. The gloves are very tight. They can hurt the a...
[ "They feel very lonely.", "They have to stay alone in space.", "They have no friends.", "They have no families." ]
A
null
openbookqa_877
openbookqa
As the flower size increases, what will it attract more of?
[ "monarchs", "grass", "carnivores", "toy butterfly" ]
A
qasc_645
qasc
What is it called when an animal needs to replenish bodily water?
[ "hunger", "spring", "diet", "dehydration" ]
D
openbookqa_2987
openbookqa
When writing with an instrument one sharpens, the leftovers when pressed to paper is
[ "a squid", "glowing", "a mineral", "bright white" ]
C
medmcqa_7546
medmcqa
When observations are made before and after the exposure to the factor, it is
[ "Chi-square test", "Unpaired T-test", "Paired T-test", "Paired T-test" ]
C
Ans. is 'c' i.e., Paired T-test o Paired T - test : is applied to paired data when each individual gives a pair of observation, such as when observations are made both before and after the play of a factor. e.g. Pulse rate before and after administration of a drug.
openbookqa_1383
openbookqa
Which of the following would be considered a predator?
[ "grizzly bear", "moose", "salmon", "lobster" ]
A
arc_easy_432
arc_easy
Which of these is the main function of a cell wall?
[ "To make food", "To store water", "To provide support", "To make the plant green" ]
C
medmcqa_8857
medmcqa
Oxygen hemoglobin dissociation curve shifts to right in all of the following conditions EXCEPT:
[ "Hyperthermia", "Decreased pH", "Decreased H+", "Increase CO2" ]
C
Ans. C Decreased H+Ref: Ganottg, 25th ed. pg. 640-641OXYGEN HEMOGLOBIN DISSOCIATION CURVE* Oxygen- hemoglobin dissociation curve is sigmoid 'S' shaped because binding of one oxygen molecule to heme increases the affinity of second heme molecule for oxygen and so on.Factors affecting affinity of Hb for oxygen and causin...
pubmedqa_309
pubmedqa
Prostatic syndrome and pleural effusion: are they different diseases?
[ "yes", "no", "maybe" ]
C
qasc_2791
qasc
What are usually considered to be nonliving?
[ "bacteria", "influenza orthomyxoviruses", "phytoplankton", "direct damage to the lungs" ]
B
aquarat_47072
aquarat
A man can row downstream at the rate of 26 Kmph and upstream at 12 Kmph. Find the man’s rate in still water and rate of current?
[ "A)8.5", "B)8.0", "C)9.5", "D)7.0" ]
D
Rate of still water = 1/2 (down stream + upstream) = 1/2 (26 + 12) = 19 Kmph rate of current = 1/2 (down stream - upstream) = 1/2 (26 - 12) = 1/2 (14) = 7 kmph Answer is D.
aquarat_49733
aquarat
Find the area of a parallelogram with base 24 cm and height 16 cm?
[ "A)281", "B)284", "C)288", "D)255" ]
B
Area of a parallelogram = base * height = 24 * 16 = 384 cm2 Answer: B
openbookqa_2459
openbookqa
An organism that has an unusual habitat on it's back is
[ "carrier snails", "feelings", "magic", "love" ]
A
aquarat_13833
aquarat
Marcella has 23 pairs of shoes. If she loses 9 individual shoes, what is the greatest number of matching pairs she could have left?
[ "A)21", "B)20", "C)19", "D)18" ]
D
Marcella has 23 pairs of shoes and loses 9 shoes. To minimize the loss of identical pairs of shoes we want Marcella to lose as many identical pairs as possible. This would yield 4 identical pairs and 1 additional shoe (destroying 5 pairs of shoes). The 23 pairs of shoes minus the 5 'destroyed' pairs yields 20 pairs tha...
medmcqa_5273
medmcqa
Bleeding from peptic ulcer most commonly involve
[ "Gastroduodenal aery", "Left gastric aery", "Splenic aery", "Sho gastric aery" ]
A
Bleeding peptic ulcer MC indication for operation and principal cause of death in PUD patients The most significant hemorrhage occurs when duodenal or gastric ulcers penetrate into branches of the gastroduodenal aery or left gastric aery, respectively Incidence of peptic ulcer bleeding decreased over past decade, but M...
arc_easy_723
arc_easy
Before rock can become soil, it must undergo certain processes. One process in the formation of soil involves plants. How can plants chemically change rocks into soil?
[ "They weather rocks with acid.", "They strip the rocks of minerals.", "They break rocks into small pieces.", "They increase the density of the rocks." ]
A
arc_easy_1320
arc_easy
Which of these could cause water vapor to condense into rain droplets?
[ "sunlight warming the surface of oceans", "air rising into colder regions of the atmosphere", "lightning heating the air in the atmosphere", "winds blowing along the surface of the ground" ]
B
medmcqa_3989
medmcqa
A 5-day-old male infant is diagnosed with Hirschsprung disease. CT scan examination reveals an abnormally dilated colon. Which of the following is the most likely embryologic mechanism responsible for Hirschsprung disease?
[ "Failure of neural crest cells to migrate into the walls of the colon", "Incomplete separation of the cloaca", "Failure of recanalization of the colon", "Defective rotation of the hindgut" ]
A
Congenital megacolon (Hirschsprung disease) results from the failure of neural crest cells to migrate into the walls of the colon. Incomplete separation of the cloaca would result in anal agenesis either with or without the presence of a fistula. The failure of recanalization of the colon results in rectal atresia, whe...
aquarat_24116
aquarat
Mohan purchased 10 kgs of rice at the rate of Rs.26 per kg and 10 kgs of pulses at the rate of Rs.26 per kg. Whaat is the total amount that he paid to the shopkeeper?
[ "A)A)Rs.520", "B)B)Rs.594", "C)C)Rs.596", "D)D)Rs.595" ]
A
Explanation: Price of 10 kgs of rice at Rs.26/kg = 10x26 = Rs.260 Price of 8 kgs of pulses at Rs.26/kg = 10x26 = Rs.260 Therefore, Total amount = Rs.260+Rs.260 = Rs.520. Answer: Option A
aquarat_20561
aquarat
Find how many positive integers less than 10,000 are there suchthat the sum of the digits of the no. is divisible by 3?
[ "A)2345", "B)2445", "C)2653", "D)3334" ]
D
If sum of the digits is divisible by 3, the number is divisible by 3. Therefore, required number of non-negative integers is equal to count of numbers less than 10,000 which are divisible by 3. Such numbers are (3, 6, 9, ... , 9999) (arithmetic progression with first term=3, last term=9999, common difference=3). Count ...
aquarat_30840
aquarat
Consider a set S given as {11,22,33,44,55,66,77,88,99} . If each element of the data set is multiplied by -7 then by what factors will the Mean,Variance and Standard Deviation respectively change ?
[ "A)-7,-7,-7", "B)-7,7,7", "C)1,1,1", "D)-7,49,7" ]
D
Mean: If all values are multiplied by -7 then their sum will also be multiplied by -7 so Mean will also get -7 Variance: Variance is equal to (Sum of (Square of (the difference between mean and individual values))/Total number of values When we multiply all the values by -7 then the difference between the mean and the ...
medmcqa_9488
medmcqa
Secretomotor fibers in the superior salivatory nucleus pass through the following nerves to reach the Submandibular ganglion:
[ "Facial nerve.", "Chorda tympani.", "Lingual nerve.", "All of the above." ]
D
qasc_1978
qasc
how is a greenhouse used to protect plants?
[ "prevent heat loss", "raising their temperature", "storing water", "reusing materials" ]
B
medmcqa_3370
medmcqa
Kelly's medium is used in the isolation of -
[ "Leptospira", "Borrelia", "Bartonella", "Brucella" ]
B
medmcqa_5640
medmcqa
Chvostek’s sign is elicited by
[ "BP cuff in arm for 5 minutes", "Facial nerve stimulation by tapping over the parotid", "Tapping over extensor pollicis brevis", "Tapping over flexor retinaculum" ]
B
The Clinical manifestations of hypocalcemia are mostly due to neuromuscular irritability.  The patients complains of paresthesias which are typically perioral or of the hands and feets  Tetany is the classic manifestation of hypocalcemia, the manifestations are :  Corpopedal Spasm o Laryngospasm o Seizures Latent tetan...
arc_easy_2157
arc_easy
Photosynthesis is the process that converts carbon dioxide and water into
[ "carbon and oxygen.", "sugar and hydrogen.", "sugar and oxygen.", "nitrogen and carbon." ]
C
openbookqa_853
openbookqa
To see evaporation you can wrap
[ "a metal in plastic", "a bowl of water in plastic", "a cat in a bag", "money in plastic bags" ]
B
aquarat_11448
aquarat
The price of 80 apples is equal to that of 120 oranges. The price of 60 apples and 75 oranges together is Rs.1320. The total price of 25 apples and 40 oranges is
[ "A)680", "B)620", "C)720", "D)480" ]
B
Let the price of one apple = a and price of one orange = b The price of 80 apples is equal to that of 120 oranges 80a = 120b => 2a = 3b ==> b=2a/3 ------------(1) price of 60 apples and 75 oranges together is Rs.1320 =>60a + 75b = 1320 => 4a + 5b = 88 ==> 4a + 5(2a/3) = 88 -------(from equation 1) => 12a + 10a = 88 × 3...
medmcqa_6936
medmcqa
Following are radiological evidence of Achalasia cardia except not related -radiology
[ "Smooth narrowing of esophagus", "Dilated touous esophagus", "Absence of air in the fundus", "Exaggerated peristalsis" ]
D
.
pubmedqa_967
pubmedqa
Surgical management of the atherosclerotic ascending aorta: is endoaortic balloon occlusion safe?
[ "yes", "no", "maybe" ]
B
medmcqa_9042
medmcqa
Natural method of contraception is: September 2005
[ "Rhythm method", "Coitus interruptus", "Breast feeding", "All of the above" ]
D
Ans. D: All of the above Natural methods of contraception are: Abstinence Refraining from penetrative sex provides 100% protection from pregnancy, and offers effective prevention of transmission of sexually transmitted infections as well. Withdrawal or Coitus interruptus The withdrawal method of family planning is unli...
openbookqa_3268
openbookqa
Breath includes which of the following?
[ "Energy", "Chemical", "Vapor", "Cells" ]
C
mmlu_aux_1752
mmlu_auxiliary
DNA is one of the most important discoveries in science. DNA is the plan for the human being, as a blueprint is the plan for a building. DNA makes a person look the way he does. A person's DNA comes from a mixing of his parents' DNA. That's why a child looks like his parents. But, besides controlling things such as hei...
[ "The DNA Research in Japan", "A New Way of DNA Research in Japan.", "The Causes and Effects of DNA Research", "The Advantages And Disadvantages of RDNA" ]
D
null
qasc_4944
qasc
What kind of cancer does exposure to cigarettes and cigars often cause?
[ "lung", "UV", "foot", "damage" ]
A
openbookqa_1411
openbookqa
John was able to read at night even though the electricity had gone out. John was using
[ "a pepperoni and cheese pizza", "a heavy maple desk", "an item made from a petroleum product with a cord sticking out the top", "an old step ladder" ]
C
qasc_5387
qasc
what can sunlight and rain cause?
[ "h2o condensation", "snow", "chromatic dispersion", "scattered light" ]
C
aquarat_17835
aquarat
An alloy weighing 48 ounces is 25% gold. How many ounces of pure gold must be added to create an alloy that is 40% gold?
[ "A)15", "B)20", "C)12", "D)14" ]
C
An alloy of 48oz which is 25% gold means there is 12 oz of gold. To get to an alloy that is 40% gold, let's use this expression: (12 + x)/(48 + x) = 0.40 with x representing the amount of pure gold that must be added to get to 40%. The expression we are using represents the new total weight of pure gold over the new to...
medmcqa_7656
medmcqa
All of the following statement about Renal Calculi are true, Except:
[ "Cystine stones form in acidic urine", "Struvite stones form in alkaline urine", "Oxalate stones are radiopaque", "Uric acid stones are resistant to ESWL" ]
D
Answer is D (Uric acid stones are resistant to ESWL): Uric acid stones are not resistant to ESWL. Uric acid stones are infact most responsive to Lithotripsy along with calcium oxalate dehydrate stones.
medmcqa_5761
medmcqa
All are first generation cephalosporins except :
[ "Cefadroxil", "Cefazolin", "Cephalexin", "Cefaclor" ]
D
mmlu_aux_2798
mmlu_auxiliary
Researchers at San Diego Zoo have been studying what has been described as the "secret language" of elephants. They have been monitoring communications between animals that cannot be heard by human ears. The elephant's call will be familiar to most people, but the animals also give out growls . Their growls, however,...
[ "The elephants can speak like people.", "The wild elephants' ways to fight against enemies.", "The \"secret language\" between elephants.", "The special life of female elephants." ]
C
null
qasc_5808
qasc
Friction can cause fires to break out in a home due to what?
[ "heating liquids", "wind speed", "temperature", "centripetal force" ]
C
arc_challenge_712
arc_challenge
A student stands on a scale, and the scale reads 85 pounds. What is being measured by the scale?
[ "the force of gravity acting on the student", "the air pressure surrounding the student", "the mass of the student", "the volume of the student" ]
A
mmlu_aux_4508
mmlu_auxiliary
Wind turbines are efficient sources of cheap energy but also a source of concern as their huge spinning blades frequently kill birds and bats. A new type of wind generator developed in Spain offers a creative solution to that problem. In 2002, Spanish inventor David Yanez saw a short film about the Tacoma Narrows Bri...
[ "Bladeless wind-power generator is friendly to birds.", "Wind turbines are efficient sources of cheap energy.", "A new generator will come onto the market by 2017.", "Yanez has made a generator for the benefit of people." ]
A
null
mmlu_aux_3085
mmlu_auxiliary
George Washington Carver showed that plant life was more than just food for animals and humans. Carver's first step was to analyze plant parts to find out what they were made of. He then combined these simpler isolated substances with other substances to create new products. The branch of chemistry that studies and fin...
[ "Make a study of plant parts.", "Make new products out of farm products.", "Carver helped the United States Department of Agriculture.", "Make a study on animal disease." ]
D
null
medmcqa_3047
medmcqa
Treatment of Acute pancreatitis includes all except
[ "Calcium", "Feeding through ryles tube", "Cholestyramine", "None of the above" ]
D
Oral administration of food and TPN is not recommended. Patient is fed via NGT to jeyunum.
mmlu_aux_5011
mmlu_auxiliary
When an animal helps another animal, it usually gets something valuable in return. For a long time, many scientists thought that only people could act generously just because it feels good. However, a new study in Germany suggests that chimpanzees also do good things for no real reason. And so do children who are as y...
[ "young chimpanzee that live on an island", "18-month-old children who live in Germany", "kids who are living with adult chimpanzees", "adult chimpanzees that live on the African mountain" ]
B
null
medmcqa_8534
medmcqa
Location Hasner's of valve?
[ "Opening of nasolacrimal duct", "Sphenoidal sinus opening", "Frontal sinus opening", "Ethmoidal sinus opening" ]
A
Opening of nasolacrimal ductNasolacrimal duct opens into inferior meatus and is closed by a mucosal flap called Hasner's valve
mmlu_aux_4118
mmlu_auxiliary
Many scientists are now exploring the idea of going to live on Mars. Some other scientists from the MASA AMES Center have already started the creation of a "Mars town" and many others are in fact already experimenting with it. Of course, these experiments are done on Earth itself but this "Mars town" has an environmen...
[ "Mars Town", "Living on Mars", "The Future of Earth", "Where to live in the Future" ]
D
null
openbookqa_415
openbookqa
What is an example of humans building houses in a ecosystem and causing change in the environment as a result?
[ "a dog house is placed in a fenced in back yard", "a birdbath is placed in a park with a low squirrel population", "a city is built over a park and deer lose their home", "a small house is built in the forest and animals are fed there" ]
C
aquarat_21350
aquarat
A sum of money deposited at C.I. amounts to Rs.3650 in 2 years and to Rs.4015 in 3 years. Find the rate percent?
[ "A)10%", "B)15%", "C)20%", "D)25%" ]
A
Explanation: 3650 -------- 365 100 -------- ? (10%) Answer: Option A
aquarat_34248
aquarat
Which greatest possible length can be used to measure exactly 15 meter 75 cm, 11 meter 25 cm and 7 meter 65 cm
[ "A)45cm", "B)255cm", "C)244cm", "D)55cm" ]
A
Explanation: Convert first all terms into cm. i.e. 1575 cm, 1125cm, 765cm. Now whenever we need to calculate this type of question, we need to find the HCF. HCF of above terms is 255. Answer: Option A
qasc_7763
qasc
What do many plants do to respond to the shorter days in fall?
[ "go through a resting period", "changing the phase", "Release energy", "Generating heat" ]
A
mmlu_aux_7599
mmlu_auxiliary
A mechanical device requires 420 J of work to do 230 J of work in lifting a crate. What is the efficiency of the device?
[ "65%", "50%", "60%", "55%" ]
D
null
medmcqa_9910
medmcqa
Rapid cycling is associated with which illness:
[ "Substance abuse", "Schizophrenia", "Bipolar Disorder", "Panic disorder" ]
C
Ans. C. Bipolar disorderBipolar disorder involves extremes of both high and low moods and a range of other symptoms. In rapid cycling, moods change quickly, with at least 4 distinct mood episodes per year.
medmcqa_9891
medmcqa
Following is are the clinical feature's of lepromatous leprosy
[ "Leonine facies", "Loss of libido and impotence", "Saddle nose", "All the above" ]
D
Important clinical features oflepromatous leprosy Diffuse erythema, ngling, nasal stuffiness or ep is tax is are earliest manifestations. Nodules with predelicon for external ears, Madarosis (loss of eyelashes and eye brow s), Saddle nose (Collapse of nasal bridge) and perforation of palate. Testicular involvement ...
arc_easy_903
arc_easy
Living things are classified as producers or consumers according to
[ "their speed of movement", "the size of their communities", "how they obtain food", "how they reproduce" ]
D
medmcqa_9066
medmcqa
Triple helix is found in ?
[ "Cystine", "Collagen", "Pectin", "DNA" ]
B
Ans is 'b' i.e., Collagen Collagen Collegen is the most common protein in the animal world. It is a component of ECM. The collegens are composed of a triple helix of three polypeptide a-chains. It provides tensile strength to tissues. Collegen type IV with laminin is the main component of basement membrane. Fibrillar c...
aquarat_16671
aquarat
What number is obtained by adding the units digits of 734^100 and 347^83?
[ "A)7", "B)8", "C)9", "D)10" ]
C
The units digit of 734^100 is 6 because 4 raised to the power of an even integer ends in 6. The units digit of 347^83 is 3 because powers of 7 end in 7, 9, 3, or 1 cyclically. Since 83 is in the form 4n+3, the units digit is 3. Then 6+3 = 9. The answer is C.
aquarat_49837
aquarat
A CAN FINISH A WORK IN 18 DAYS AND B CAN DO THE SAME WORK IN15 DAYS. B WORKED FOR 10 DAYS AND LEFT THE JOB. IN HOW MANY DAYS, A ALONE CAN FINISH THE REMAINING WORK?
[ "A)5", "B)5 1/2", "C)6", "D)8" ]
C
B'S 10 DAY'S WORK=(1/15*10)=2/3 REMAINING WORK = (1-2/3)=1/3 NOW, 1/18 WORK IS DONE BY A IN 1 DAY 1/3 WORK IS DONE BY A IN (18*1/3)=6 DAYS. CORRECT OPTION:C
medmcqa_703
medmcqa
Most common cause of neonatal meningitis-
[ "Staphylococcus", "E. coli", "H. influenze", "Pneumococcus" ]
B
Ans. is 'b' i.e., E. coli o E. coli & streptococcus agalactie (group B streptococci) are the two most common cause of neonatal sepsis and meningitis.
aquarat_19054
aquarat
If 16,666 – n is divisible by 11, and 0 < n < 11, what is n?
[ "A)1", "B)3", "C)5", "D)7" ]
A
16,666 / 11 = 1515 with a remainder of 1. We need to subtract the remainder to get a multiple of 11. The answer is A.
aquarat_21038
aquarat
45 is the product of two negative numbers. If the greater number is doubled, it is 1 more than the lesser number. What is the greater number?
[ "A)-6", "B)-5", "C)-8", "D)-1" ]
B
Test the options. (B) - 5 Double of -5 is -10 and 1 less is -9. -9 * -5 = 45 (Correct) Correct Answer (B)
aquarat_42992
aquarat
A train covers a distance of 12 km in 10 min. If it takes 11 sec to pass a telegraph post, then the length of the train is?
[ "A)177 m", "B)189 m", "C)220 m", "D)178 m" ]
C
Speed = (12/10 * 60) km/hr = (72 * 5/18) m/sec = 20 m/sec. Length of the train = 20 * 11 = 220 m. Answer: C
arc_easy_405
arc_easy
Which tools are best used to determine the speed of a turtle as it walks along a path?
[ "Meter stick and graduated cylinder", "Stopwatch and meter stick", "Balance and metric ruler", "Balance and stopwatch" ]
B
arc_easy_1880
arc_easy
What happens to water when it boils?
[ "It changes color.", "It becomes heavier.", "It changes into water vapor.", "It stops bubbling." ]
C
mmlu_aux_3361
mmlu_auxiliary
While only about 200 astronauts have had the excitement of looking down at Earth and commanding systems on the International Space Station, actually thousands of everyday middleschool students have experienced by Middle School Students, or EarthKAM, a camera system. EarthKAM is an educational activity and outreach inve...
[ "The astronauts.", "The students.", "The investigation developers.", "The teachers." ]
B
null
mmlu_aux_4086
mmlu_auxiliary
Jeremy Kerr, a researcher at the University of Ottawa in Canada, and his colleagues analyzed more than 400,000 observations of bumblebee species collected in North America and Europe from 1975 to 2010. When the researchers recorded the locations of these bee populations, they found that many of the 67 species analyzed ...
[ "Habitat loss.", "Pesticide use.", "Climate change.", "The spread of bee parasites." ]
C
null
mmlu_aux_3201
mmlu_auxiliary
When it comes to problem solving, many of us have heard of the skills of the crow in Aesop's Fables (<<>> ). In the story, a thirsty crow comes across a bottle of water, but the water level is out of its reach. The bird then drops small stones into it until the water level rises enough for the bird to drink. "Oh, i...
[ "To introduce the idea that crows are smart.", "To show that fables about crows are wrong.", "To explain why crows can solve problems.", "To prove that crows can be better than babies at problem solving." ]
A
null
openbookqa_1580
openbookqa
A bud will want pollen to be extracted and then spread, so it will require
[ "assistance from vice principals", "delivery to the door", "assistance from flying creatures", "help from new neighbors" ]
C
openbookqa_439
openbookqa
Survival of an organism is positively impacted by
[ "access to food lacking in nutrients", "access to dirty, tainted water", "access to viable and required items", "access to roadways and highways" ]
C
aquarat_10258
aquarat
Look at this series: 8, 22, 8, 28, 8, ... What number should come next?
[ "A)9", "B)29", "C)32", "D)34" ]
D
Explanation: This is a simple addition series with a random number, 8, interpolated as every other number. In the series, 6 is added to each number except 8, to arrive at the next number. Answer: Option D
arc_easy_1515
arc_easy
What characteristic helps a rabbit survive in a winter environment?
[ "size", "strength", "long ears", "camouflage" ]
D
medmcqa_879
medmcqa
The germinal cell layer surrounding the oocyte before ovulation is known as :
[ "Zona pellucida", "Zona reticularis", "Cumulous oophorus", "Zona glomerulosa" ]
C
In one area , the granulosa cells are collected together to form a projection into the cavity of graffian follicle. This projection is referred to as the discus proligerus or cumulus oophorus. The ovum itself lies within it.With the exception of area around the discus, the peripheral granulosa cells form a layer only a...
aquarat_16240
aquarat
The average weight of A, B and C is 60 kg. If the average weight of A and B be 70 kg and that of B and C be 50 kg, then the weight of B is:
[ "A)50 kg", "B)60 kg", "C)55 kg", "D)57 kg" ]
B
EXPLANATION Let A, B, C represent their respective weights. Then, we have: A + B + C = (60 x 3) = 180 …. (i) A + B = (70 x 2) = 140 …. (ii) B + C = (50 x 2) = 100 ….(iii) Adding (ii) and (iii), we get: A + 2B + C = 240 …. (iv) Subtracting (i) from (iv), we get : B = 60. B’s weight = 60 kg. Answer B
qasc_1153
qasc
When rocks break down, what do they make?
[ "fossil fuels", "sediment", "disintegrate", "soft soil" ]
B
pubmedqa_660
pubmedqa
Does health information exchange reduce redundant imaging?
[ "yes", "no", "maybe" ]
A