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medmcqa
medmcqa_05_04265
A patient with ear complaints showed positive Hennebe sign. Which of the following condition shows positive Hennebe sign?
[ "Meniere's disease", "Acoustic neuroma", "Neuronitis", "Glossopharyngeal neuralgia" ]
A
The presence of a fistula is suspected if nystagmus occurs or if the patient perceives movement of a visual target that is fixed after applying positive pressure to the outer ear canal. REF : HAZARIKA 3RD ED.
sciq
sciq_01_07310
What are winds that blow over a limited area called?
[ "trade winds", "local winds", "Periodic Winds", "Planetary Winds" ]
B
Local winds are winds that blow over a limited area. Local winds blow between small low and high pressure systems. They are influenced by local geography. Nearness to an ocean, lake, or mountain range can affect local winds. Some examples are found below. Local winds can affect the weather and climate of a region.
openbookqa
obqa_02_01001
What body covering does the animal that clucks have?
[ "Skin", "Feathers", "Scales", "Fur" ]
B
chickens cluck
openbookqa
obqa_02_00147
What happens to body water when animal activity rises
[ "the water decreases", "it stays same", "the water increases", "the water hardens" ]
A
as the activity of an animal increases , the amount of water in an animal 's body in that environment will decrease
math_qa
mathqa_03_02252
the tax on a commodity is diminished by 15 % and its consumption increased by 10 % . the effect on revenue is ?
[ "8.5", "6.5", "5.5", "5.6" ]
B
"100 * 100 = 10000 85 * 110 = 9350 - - - - - - - - - - - 10000 - - - - - - - - - - - 650 100 - - - - - - - - - - - ? = > 6.5 % decrease answer : b"
ARC-Easy
arc_04_00222
What does a mirror do to light that causes objects to appear backwards?
[ "refracts", "reflects", "absorbs", "blocks" ]
B
null
sciq
sciq_01_07885
What do we call the full range of electromagnetic waves?
[ "electromagnetic scale", "mechanical spectrum", "electromagnetic spectrum", "molecular spectrum" ]
C
Electromagnetic waves vary in their wavelengths, frequencies, and energy levels. The full range of electromagnetic waves makes up the electromagnetic spectrum.
math_qa
mathqa_03_00791
10 camels cost as much as 24 horses , 16 horses cost as much as 4 oxen and 6 oxen as much as 4 elephants . if the cost of 10 elephants is rs . 110000 , find the cost of a camel ?
[ "s . 9800", "s . 3800", "s . 9800", "s . 4400" ]
D
"cost of the camel = p 10 camels = 24 horses 16 horses = 4 oxen 6 oxen = 4 elephants 10 elephants = rs . 110000 p = rs . [ ( 24 * 4 * 4 * 110000 ) / ( 10 * 16 * 6 * 10 ) ] p = rs . ( 42240000 / 9600 ) = > p = rs . 4400 answer : d"
openbookqa
obqa_02_01541
positively impact your bodies strength by
[ "dead-lifting", "thinking", "sleeping", "singing" ]
A
exercise has a positive impact on a body 's strength
sciq
sciq_01_10831
The volume of blood each ventricle pumps per minute is called what?
[ "blood output", "trauma output", "brain output", "cardiac output" ]
D
math_qa
mathqa_03_03563
the h . c . f . of two numbers is 59 and the other two factors of their l . c . m . are 13 and 16 . the larger of the two numbers is :
[ "678", "944", "456", "323" ]
B
: explanation : clearly , the numbers are ( 59 x 13 ) and ( 59 x 16 ) . { \ color { blue } \ therefore } larger number = ( 59 x 16 ) = 944 . answer : b ) 944
openbookqa
obqa_02_00463
what creates no pollution?
[ "natural fuel like coal or gas", "mills that makes energy from the wind", "buildings that make large quantities of items", "transportation contraptions with four wheels" ]
B
a windmill does not create pollution
sciq
sciq_01_00324
What kind of power does not produce any pollutants, but produces waste that can be difficult to dispose of?
[ "biofuel", "electrical", "solar", "nuclear" ]
D
Nuclear power is a controversial subject in California and most other places. Nuclear power has no pollutants including no carbon emissions. However, power plants are not always safe. The long-term disposal of wastes is a problem that has not yet been solved. The future of nuclear power is murky. Find out more at: http...
ARC-Easy
arc_04_01004
Some schools have programs to recycle paper products such as student papers, newspapers, and cardboard boxes. Which of these statements describes a positive effect of recycling paper products?
[ "Schools need to buy less paper.", "Fewer trees need to be cut.", "Landfills have less room for other trash.", "Recycling consumes more energy than making new paper." ]
B
null
ARC-Easy
arc_04_01001
Which type of organism is at the lowest level of the food chain?
[ "autotroph", "heterotroph", "carnivore", "omnivore" ]
A
null
openbookqa
obqa_02_00970
What has a positive net impact on an environment?
[ "placing sapling seeds in the ground", "deforesting a dry environment", "introducing new species there", "tilling the soil of the area" ]
A
planting trees has a positive impact on an ecosystem
math_qa
mathqa_03_01662
what profit percent is made by selling an article at a certain price , if by selling at 2 / 3 rd of that price , there would be a loss of 20 % ?
[ "20 %", "28 %", "60 %", "26 %" ]
A
"sp 2 = 2 / 3 sp 1 cp = 100 sp 2 = 80 2 / 3 sp 1 = 80 sp 1 = 120 100 - - - 20 = > 20 % answer : a"
medmcqa
medmcqa_05_04709
Which of the following therapy is used in the treatment of Borderline personality Disorder?
[ "Modelling", "Sensate focus therapy", "Dialectical behavior therapy", "Exposure and response prevention" ]
C
Treatment for Borderline personality disorder involves Dialectical behavior therapy, Transference focussed therapy, Mentalization therapy.
medmcqa
medmcqa_05_03504
A 12-year-old child presents with tingling sensation and numbness in the little finger and gives a history of fracture in the elbow region 4 years back. The probable fracture is -
[ "Lateral condyle fracture humerus", "Injury to ulnar nerve", "Supracondylar fracture humerus", "Dislocation of elbow" ]
A
Similar to previous question, the child is presenting with tardy ulnar nerve palsy. Here the age of child at the time of injury to elbow is 8 years (child is 12 years old and he/she sustained injury 4 years back). So, age group matches with lateral condyle fracture (5-10 years). About option 'b' Ulnar nerve injury due ...
openbookqa
obqa_02_02059
A successful combination of things is
[ "tomatoes and peppers", "nylon and carpet", "milk and honey", "sand and socks" ]
C
An example of combining two substances is pouring one substance into the other substance
medmcqa
medmcqa_05_04396
A male patient has a sucking stab wound to the chest. Which action should the nurse take first?
[ "Drawing blood for a hematocrit and hemoglobin level", "Applying a dressing over the wound and taping it on three sides", "preparing a chest tube insertion tray", "Preparing to start an I.V. line" ]
B
The nurse immediately should apply a dressing over the stab wound and tape it on three sides to allow air to escape and to prevent tension pneumothorax (which is more life-threatening than an open chest wound). Only after covering and taping the wound should the nurse draw blood for laboratory tests, assist with chest...
math_qa
mathqa_03_03769
in assembling a bluetooth device , a factory uses one of two kinds of modules . one module costs $ 10 and the other one , that is cheaper , costs $ 6 . the factory holds a $ 80 worth stock of 12 modules . how many of the modules in the stock are of the cheaper kind ?
[ "20", "25", "10", "30" ]
C
"so the number of $ 6 modules must be 10 so that the leftover 2 modules are of $ 10 which will give a total value $ 80 . 10 * 6 + 2 * 10 = 60 + 20 = 80 answer : c"
sciq
sciq_01_03723
Like a blanket on a sleeping person, greenhouse gases act as what for the planet?
[ "ventilation", "Exterior Coverings", "plastic", "insulation" ]
D
Like a blanket on a sleeping person, greenhouse gases act as insulation for the planet. The warming of the atmosphere is because of insulation by greenhouse gases. Greenhouse gases are the component of the atmosphere that moderate Earth’s temperatures.
math_qa
mathqa_03_02877
3 candidates in an election and received 5136 , 7636 and 11628 votes respectively . what % of the total votes did the winningcandidate got in that election ?
[ "45 %", "48 %", "57 %", "59 %" ]
B
"total number of votes polled = ( 5136 + 7636 + 11628 ) = 24400 so , required percentage = 11628 / 24400 * 100 = 48 % b"
math_qa
mathqa_03_01790
the credit card and a global payment processing companies have been suffering losses for some time now . a well known company recently announced its quarterly results . according to the results , the revenue fell to $ 55.0 billion from $ 69.0 billion , a year ago . by what percent did the revenue fall ?
[ "25.5", "30.4", "31.8", "32.5" ]
A
"$ 69 - $ 55 = 14 $ ( 14 / 55 ) * 100 = 25.5 % answer : a"
medmcqa
medmcqa_05_01915
A 30-year-old woman presents with history of fever for 2 weeks with multiple episodes of haemoptysis. Bronchoscopy shows a polypoid mass covered with intact mucosa. Surgical resection was done and the histology slide is shown below. What is the diagnosis?
[ "Carcinoid tumour", "Large cell cancer", "Pulmonary hamaoma", "Adenocarcinoma lung" ]
A
Carcinoid tumor Aka Kulchitsky cell tumor Commonly present in bronchus Causes local damage, hemoptysis, diarrhea, fever Histology - polypoid cell with intact mucosa, basophilic nest of cells.
math_qa
mathqa_03_02100
if a certain number is divided by 12 , the quotient , dividend , and divisor , added together , will amount to 64 . what is the number ?
[ "18", "28", "48", "38" ]
A
"let x = the number sought . then x / 12 + x + 12 = 64 . and x - 624 / 13 = 48 ."
sciq
sciq_01_01996
During sexual reproduction, the macronucleus dissolves and is replaced by what?
[ "fluctuations", "sporozoans", "chromosomes", "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
sciq_01_06559
What type of pollutants enter the air directly?
[ "primary", "carbon", "secondary", "liquid" ]
A
Primary pollutants enter the air directly. Some are released by natural processes, like ash from volcanoes. Most are released by human activities. Carbon oxides are released when fossil fuels burn.
math_qa
mathqa_03_01536
if 0.5 % of a = 80 paise , then the value of a is ?
[ "rs . 170", "rs . 160", "rs . 1.70", "rs . 4.25" ]
B
"answer ∵ 0.5 / 100 of a = 80 / 100 ∴ a = rs . ( 80 / 0.5 ) = rs . 160 correct option : b"
sciq
sciq_01_11370
How many pairs of chromosomes are found in human cells?
[ "23", "24", "13", "25" ]
A
Human cells have 23 pairs of chromosomes, and each chromosome within a pair is called a homologous chromosome . For each of the 23 chromosome pairs, you received one chromosome from your father and one chromosome from your mother. Alleles are alternate forms of genes found on chromosomes. Homologous chromosomes have th...
medmcqa
medmcqa_05_03240
Hasse's formula is used in pregnancy to?
[ "Estimate fetal age", "Identify fetal blood group", "Identify fetal sex", "Identify fetal congenital malformations" ]
A
Ans. (a) Estimate fetal ageRef. Textbook of forensic medicine and toxicology by nageshkumar rao, p 321
openbookqa
obqa_02_02228
A person yells inside a garage. Their voice echoes and they hear
[ "a bird chirping away", "a dog barking loudly", "a car engine rev", "a shout repeating softer" ]
D
when a sound is produced inside of a room , there is sometimes an echo after the sound
sciq
sciq_01_03967
What doctors specialize in diseases stemming from glandular issues?
[ "oncologists", "dermatologists", "endocrinologists", "anthropologists" ]
C
Endocrinologist An endocrinologist is a medical doctor who specializes in treating disorders of the endocrine glands, hormone systems, and glucose and lipid metabolic pathways. An endocrine surgeon specializes in the surgical treatment of endocrine diseases and glands. Some of the diseases that are managed by endocrino...
medmcqa
medmcqa_05_01250
Mendelson syndrome is due to – a) Aspiration pneumonitisb) Chemical pneumonitisc) Oesophagitisd) Oesophageal spasm
[ "ac", "ab", "ad", "bc" ]
B
Mendelson's syndrome is aspiration pneumonitis caused by aspiration of gastric fluid into the lung. Aspiration pneumonitis is a chemical pneumonitis due to chemical reaction produced by gastric acid.
openbookqa
obqa_02_04078
All animals need to be what during cold conditions in order to survive?
[ "in space", "warm enough", "Freezing", "lying down" ]
B
an animal requires warmth for survival
ARC-Easy
arc_04_01459
Aluminum is an element. Which of the following best describes the smallest particle of aluminum that retains all the properties of aluminum?
[ "a molecule", "an atom", "a proton", "an electron" ]
B
null
math_qa
mathqa_03_00085
in a certain state , the ratio of registered republicans to registered democrats is 3 to 2 , and every registered voter is either a republican or a democrat . if 70 percent of the republicans and 25 percent of the democrats are expected to vote for candidate x , and everyone else is expected to vote for candidate y , b...
[ "2 %", "4 %", "8 %", "10 %" ]
B
since we were expected to find a percentage figure - it thought that it might be easier to pick a ' smart number ' to represent the total number of voters ( republicans and democrats ) . therefore , i picked 100 ( as the total number of voters ) and thus 60 : 40 represents the number ratio of republicans : democrats . ...
medmcqa
medmcqa_05_01722
Pseudo-P pulmonale seen in:
[ "Hypokalemia", "Hyperkalemia", "Hypomagnesemia", "Hypercalcemia" ]
A
Ref. API Textbook of Medicine. Pg. 708   Right atrial abnormality (P pulmonale): ECG Findings: Right atrial enlargement produces a peaked P wave (P pulmonale) with amplitude: > 2.5 mm in the inferior leads (II, III and aVF) > 1.5 mm in V1 and V2 The principal cause is pulmonary hypertension due to: Chronic lung d...
openbookqa
obqa_02_02968
Camouflage can be used by animals for hunting
[ "trees", "meals", "air", "water" ]
B
camouflage can be used for hunting for prey
sciq
sciq_01_05289
What can be linked together to form disaccharides or polysaccharides?
[ "nitrates", "monosaccharides", "carbohydrates", "amino acids" ]
B
Monosaccharides can be linked together to form disaccharides or polysaccharides.
sciq
sciq_01_02305
Most reptile eggs can be laid on land, not in water and they are called what?
[ "amniotic", "Transitional", "umbilical", "aqueous" ]
A
Most reptiles reproduce sexually and have internal fertilization. Their eggs are amniotic, so they can be laid on land instead of in water. Reptiles do not have a larval stage, and their hatchlings are relatively mature. Reptile parents provide little if any care to their young.
openbookqa
obqa_02_03775
If a thing is a producer of pollen and seeds, it may be located in
[ "a cabinet", "a bag", "a microwave", "a vase" ]
D
a flower produces pollen and seeds
math_qa
mathqa_03_03814
what could be the range of a set consisting of odd multiples of 11 ?
[ "21", "24", "44", "62" ]
C
range = the difference between the greatest and the smallest numbers in the sequence . our sequence is odd and is a multiple of 7 . every number in that sequence can be represented like this : 11 * ( 2 n + 1 ) where n is any positive integer . range = 11 * ( 2 m + 1 ) - 11 * ( 2 n + 1 ) = 11 * 2 * ( m - n ) = 22 * ( m ...
medmcqa
medmcqa_05_01294
MTP cannot be done after :
[ "12 weeks", "20 weeks", "24 weeks", "28 weeks" ]
B
20 weeks
sciq
sciq_01_03335
Time, mass, length, and temperature are considered to be what kinds of units?
[ "base", "support", "measurement", "unitary" ]
A
Base units have independent scales and cannot be described by a combination of any other base units. Examples of base units used in chemistry are length, mass, temperature, and time.
sciq
sciq_01_02615
Eukaryotic cells contain what type of structures that possess special functions?
[ "organelles", "fibers", "chloroplasts", "cell membranes" ]
A
Eukaryotic cells contain a nucleus and other organelles. They include the mitochondrion, endoplasmic reticulum, Golgi apparatus, vesicles, vacuoles, lysosomes, and—in animal cells—centrioles. Each type of organelle has a special function.
medmcqa
medmcqa_05_04380
Stage 1 cutaneous T cell lymphoma treatment is -
[ "PUVA", "Biological response modifiers", "Systemic chemotherapy", "Extracorporial photopheresis" ]
A
Potent topical coicosteroids . Narrow band UVB . Psoralens+ PUVA is the treatment. Systemic chemotherapy and biological response modifiers are used in stage 3. From illustrated synopsis of dermatology and sexually transmitted diseases neena khanna 5th edition page no 406
sciq
sciq_01_04931
The last two stages of aerobic respiration require what?
[ "oxygen", "sulfur", "carbon", "water" ]
A
The last two stages of aerobic respiration require oxygen. However, not all organisms live in places where there is a plentiful supply of oxygen.
sciq
sciq_01_05187
Ions move through what to maintain electrical neutrality in the cell?
[ "the plasma", "the protein", "the membrane", "the substrate" ]
C
4. Ions move through the membrane to maintain electrical neutrality in the cell. In the cell illustrated above, sulfate ions will move from the copper side to the zinc side to compensate for the decrease in Cu 2+ and the increase in Zn 2+ .
sciq
sciq_01_01311
What disease is caused when the oomycete plasmopara viticola parasitizes grape plants?
[ "alkaline mildew", "downy mildew", "toxic mildew", "dainty mildew" ]
B
Plant Parasites Protist parasites of terrestrial plants include agents that destroy food crops. The oomycete Plasmopara viticola parasitizes grape plants, causing a disease called downy mildew (Figure 23.33). Grape plants infected with P. viticola appear stunted and have discolored, withered leaves. The spread of downy...
math_qa
mathqa_03_02029
how many seconds will a train 110 meters long take to cross a railway platform 165 meters long if the speed of the train is 132 kmph ?
[ "6 sec", "7.5 sec", "8 sec", "3 sec" ]
B
"d = 110 + 165 = 275 s = 132 * 5 / 18 = 110 / 3 mps t = 275 * 3 / 110 = 7.5 sec b ) 7.5 sec"
math_qa
mathqa_03_01002
a sum of money at simple interest amounts to $ 815 in 3 years and to $ 854 in 4 years . the sum is :
[ "$ 153", "$ 698", "$ 398", "$ 549" ]
B
"b $ 698 s . i . for 1 year = $ ( 854 - 815 ) = $ 39 . s . i . for 3 years = $ ( 39 x 3 ) = $ 117 . principal = $ ( 815 - 117 ) = $ 698 ."
ARC-Challenge
arc_04_02640
Which object has a gravitational force so strong that it forms the center of the solar system?
[ "Earth", "Pluto", "the Moon", "the Sun" ]
D
null
openbookqa
obqa_02_04137
Every one of these would be considered a fossil but what?
[ "a mammoth bone that has been turned to rock", "the imprint of a sea creature in a rock found on a mountain", "a cave full of old drawings", "a paw print in a rock" ]
C
An example of a fossil is a paw print in rock
openbookqa
obqa_02_03155
the contents of which of these will attract a natural honey producer to it?
[ "a tree bark", "a tree trunk", "a colorful hibiscus", "a green leaf" ]
C
nectar is used for attracting pollinators by plants
sciq
sciq_01_06435
What organic catalysts work by lowering the activation energy needed to start biochemical reactions?
[ "glucose", "carbohydrates", "hormones", "enzymes" ]
D
Enzymes work by lowering the activation energy needed to start biochemical reactions.
math_qa
mathqa_03_00598
the speeds of three asteroids were compared . asteroids x - 13 and y - 14 were observed for identical durations , while asteroid z - 15 was observed for 2 seconds longer . during its period of observation , asteroid y - 14 traveled three times the distance x - 13 traveled , and therefore y - 14 was found to be faster t...
[ "500", "625", "1,000", "1,500" ]
B
"x 13 : ( t , d , s ) y 14 : ( t , 3 d , s + 2500 mi / hour ) z 15 : ( t + 2 seconds , s , 5 d ) d = ? distance = speed * time x 13 : d = s * t x 14 : 3 d = ( s + 2500 ) * t = = = > 3 d = ts + 2500 t z 15 : 5 d = s * ( t + 2 t ) = = = > 5 d = st + 2 st = = = > 5 d - 2 st = st 3 d = 5 d - 2 st + 2500 t - 2 d = - 2 st + ...
medmcqa
medmcqa_05_02064
The carat of gold foil used for restoration:
[ "24", "18", "20", "16" ]
A
The direct filling gold is 99.99% pure which is similar to 24 carat gold. Carat refers to the parts of pure gold in 24 parts of an alloy. 24-karat gold is pure gold, whereas 22-karat gold is an alloy containing 22 parts pure gold and 2 parts of other metals.
math_qa
mathqa_03_04845
what is the average ( arithmetic mean ) of all multiples of 10 from 10 to 200 inclusive ?
[ "190", "105", "200", "205" ]
B
"this question can be solved with the average formula and ' bunching . ' we ' re asked for the average of all of the multiples of 10 from 10 to 200 , inclusive . to start , we can figure out the total number of terms rather easily : 1 ( 10 ) = 10 2 ( 10 ) = 20 . . . 20 ( 10 ) = 200 so we know that there are 40 total nu...
sciq
sciq_01_09349
What type of energy is the energy of moving matter?
[ "kinetic energy", "residual energy", "dynamic energy", "potential energy" ]
A
Kinetic energy is the energy of moving matter. Anything that is moving has kinetic energy—from atoms in matter to stars in outer space. Things with kinetic energy can do work. For example, the spinning saw blade in the photo above is doing the work of cutting through a piece of metal.
ARC-Easy
arc_04_01876
In what leaf structure is photosynthetic tissue found?
[ "cuticle", "upper epidermis", "mesophyll", "vascular bundle" ]
C
null
ARC-Challenge
arc_04_02210
New engine technology has helped cars get more mileage per gallon of gas. Since gasoline comes from oil, this technology will affect the world supply of oil by
[ "increasing the need to search for more oil.", "reducing the time it takes for oil to be renewed.", "decreasing the amount of oil that exists underground.", "extending the time that oil will be available for people to use." ]
D
null
sciq
sciq_01_00003
What is the least dangerous radioactive decay?
[ "zeta decay", "gamma decay", "alpha decay", "beta decay" ]
C
All radioactive decay is dangerous to living things, but alpha decay is the least dangerous.
sciq
sciq_01_11582
Decreasing the volume of a gas and keeping everything else the same will cause its pressure to change in what way?
[ "decrease", "lower", "increase", "heat up" ]
C
When gas molecules bump into things, it creates pressure. Pressure is greater when gas molecules occupy a smaller space, because greater crowding results in more collisions. This explains why decreasing the volume of a gas increases its pressure.
sciq
sciq_01_03326
What type of traits are features that are passed from one generation to the next called?
[ "generational traits", "genetic traits", "inherited traits", "familial traits" ]
C
The theory of evolution by natural selection means that the inherited traits of a population change over time. Inherited traits are features that are passed from one generation to the next. For example, your eye color is an inherited trait. You inherited your eye color from your parents. Inherited traits are different ...
sciq
sciq_01_01144
"direct" and "alternating" are two kinds of what, which is associated with electricity?
[ "levels", "time", "current", "constant" ]
C
20.5 Alternating Current versus Direct Current Alternating Current Most of the examples dealt with so far, and particularly those utilizing batteries, have constant voltage sources. Once the current is established, it is thus also a constant. Direct current (DC) is the flow of electric charge in only one direction. It ...
medmcqa
medmcqa_05_02035
Hyperacute rejection is due to
[ "Preformed antibodies", "Cytotoxic T lymphocyte mediated injury", "Endothelitis caused by donor antibodies", "Circulating macrophage mediated injury" ]
A
Hyperacute rejection occurs when preformed anti-donor antibodies are present in the circulation of the recipient. Such antibodies may be present in a recipient who has previously rejected kidney transplant, Multiparous women, Prior blood transfusionsHyperacute Rejection occurs within minutes or hours after transplantat...
openbookqa
obqa_02_00678
The ceiling of the cave grew closer to the ground due to:
[ "deposition", "luck", "magic", "wood." ]
A
stalactites are formed by deposition
math_qa
mathqa_03_01889
total dinning bill of 3 people was $ 139.00 and 10 % tip divided the bill evenly ? what is the bill amount each person shared .
[ "21.84", "50.96", "53.84", "24.84" ]
B
"dinner bill of 3 person = 139 + 10 % tip so , 10 % of 139 = ( 139 * 10 ) / 100 = 13.9 so , the actual total amount = 139 + 13.9 = $ 152.9 so per head bill = 152.9 / 3 = $ 50.96 answer : b"
math_qa
mathqa_03_03502
in 1982 and 1983 , company b ’ s operating expenses were $ 13.0 million and $ 15.0 million , respectively , and its revenues were $ 15.6 million and $ 18.8 million , respectively . what was the percent increase in company b ’ s profit ( revenues minus operating expenses ) from 1982 to 1983 ?
[ "3 %", "46 1 / 6 %", "25 %", "33 1 / 3 %" ]
B
"profit in 1982 = 15.6 - 13 = 2.6 million $ profit in 1983 = 18.8 - 15 = 3.8 million $ percentage increase in profit = ( 3.8 - 2.6 ) / 2.6 * 100 % = 46 1 / 6 % answer b"
sciq
sciq_01_00483
What is the term for groups of three successive nucleotide bases in dna?
[ "triplets", "triads", "triple play", "tertiary bases" ]
A
Overview of Transcription. Transcription uses the sequence of bases in a strand of DNA to make a complementary strand of mRNA. Triplets are groups of three successive nucleotide bases in DNA. Codons are complementary groups of bases in mRNA.
ARC-Easy
arc_04_00566
The telephone was invented in Boston by
[ "Alexander Graham Bell.", "Samuel F. B. Morse.", "Henry Ford.", "Thomas Alva Edison." ]
A
null
openbookqa
obqa_02_01010
When the digestive system is working
[ "it is bad to eat", "it is dismantling nutrients", "food is cleared out", "it is time for dinner" ]
B
the digestive system breaks food into nutrients for the body
sciq
sciq_01_11623
What form when a single atom gains or loses electrons?
[ "monatomic ions", "carbon atoms", "fusional ions", "vacuoles ions" ]
A
Monatomic ions form when a single atom gains or loses electrons. For the main group elements, cations are generally formed by removing all of the valence electrons from the atom. Since the numbers of valence electrons for the representative elements are constant within a particular group, all we need is the group numbe...
medmcqa
medmcqa_05_03722
Pneumonia is a complication of:
[ "Measles", "Chickenpox", "Infectious mononucleosis", "Mastoiditis" ]
A
Ans. A. MeaslesImportant complications of measles include immunosuppression, Pneumonia, laryngitis, tracheitis, bronchitis, and flaring of mycobacterium tuberculosis infection. Gastrointestinal complications include diarrhea, appendicitis, hepatitis, and ileocolitis.
sciq
sciq_01_05241
What carries blood away from the heart?
[ "veins", "capillaries", "arteries", "pores" ]
C
Arteries carry blood away from the heart, while veins return blood to the heart.
ARC-Easy
arc_04_00659
A lizard most likely would be protected from its enemies if it has which characteristic?
[ "claws to catch prey", "a long tail to climb trees", "eyes that can see far distances", "skin color that matches its habitat" ]
D
null
math_qa
mathqa_03_03539
the area of a square field is 900 km 2 . how long will it take for a horse to run around at the speed of 12 km / h ?
[ "12 h'", "10 h'", "8 h'", "6 h'" ]
B
explanation area of field = 900 km 2 . then , each side of field = √ 900 = 30 km distance covered by the horse = perimeter of square field = 30 × 4 = 120 km ∴ time taken by horse = distances / peed = 120 / 12 = 10 h answer b
sciq
sciq_01_06991
What does a thermometer measure?
[ "size", "oxygen", "precipitation", "temperature" ]
D
Temperature is the quantity measured by a thermometer. Temperature is related to the average kinetic energy of atoms and molecules in a system. Absolute zero is the temperature at which there is no molecular motion. There are three main temperature scales: Celsius, Fahrenheit, and Kelvin. Temperatures on one scale can ...
medmcqa
medmcqa_05_00544
Plateau phase of ventricular muscle is d/t opening of
[ "Na+ channel", "K+ channel", "Ca - Na channel", "Closure of K+ channel" ]
C
Ca2+ influx through more slowly opening Ca2+ channels produces the plateau phaseThe initial depolarization is due to Na+ influx through rapidly opening Na+ channels Repolarization is due to net K+ efflux through multiple types of K+ channels
medmcqa
medmcqa_05_02179
In which of the following conditions, Aniridia and Hemihyperophy are most likely present?
[ "Neuroblastoma", "Wilms' tumour", "Non-Hodgkin's lymphoma", "Germ cell tumour" ]
B
. Wilms&; tumour
math_qa
mathqa_03_03176
a 300 m long train crosses a platform in 39 sec while it crosses a signal pole in 18 sec . what is the length of the platform ?
[ "288", "350", "889", "276" ]
B
"speed = 300 / 18 = 50 / 3 m / sec . let the length of the platform be x meters . then , ( x + 300 ) / 39 = 50 / 3 3 x + 900 = 1950 = > x = 350 m . answer : b"
ARC-Challenge
arc_04_02677
Which situation is an example of an inherited trait?
[ "lions preying on zebras", "monkeys using twigs to get food", "birds following migratory patterns", "bears opening coolers at campsites" ]
A
null
sciq
sciq_01_10655
What is the rate at which a specific allele appears within a population called?
[ "allele rarity", "trait frequency", "allele commonness", "allele frequecy" ]
D
The allele frequency (or gene frequency) is the rate at which a specific allele appears within a population. Until now we have discussed evolution as a change in the characteristics of a population of organisms, but behind that phenotypic change is genetic change. In population genetics, the term evolution is defined a...
sciq
sciq_01_05509
Carnivores are animals that eat other animals. the word carnivore is derived from latin and literally means this?
[ "meat eater", "amount eater", "thick eater", "leaf eater" ]
A
Carnivores are animals that eat other animals. The word carnivore is derived from Latin and literally means “meat eater. ” Wild cats such as lions, shown in Figure 34.3a and tigers are examples of vertebrate carnivores, as are snakes and sharks, while invertebrate carnivores include sea stars, spiders, and ladybugs, sh...
sciq
sciq_01_03802
Why does a metal spoon heat up quickly when placed in a hot drink?
[ "high specific heat", "low specific heat", "convection", "insulation" ]
B
The Table below compares the specific heat of four different substances. Metals such as iron have low specific heat. It doesn’t take much energy to raise their temperature. That’s why a metal spoon heats up quickly when placed in a cup of hot coffee. Sand also has a relatively low specific heat. Water, on the other han...
sciq
sciq_01_03688
When menstrual periods become less frequent and finally cease; this is called?
[ "menopause", "hormonal imbalance", "metabolic", "climax" ]
A
Which of the following statements about the menstrual cycle is false? a. Progesterone levels rise during the luteal phase of the ovarian cycle and the secretory phase of the uterine cycle. Menstruation occurs just after LH and FSH levels peak. Menstruation occurs after progesterone levels drop. Estrogen levels rise bef...
sciq
sciq_01_02365
The number of waves that pass a fixed point in a given amount of time is referred to as what?
[ "wave speed", "wave frequency", "tendency frequency", "wave harmonics" ]
B
Wave frequency is the number of waves that pass a fixed point in a given amount of time.
math_qa
mathqa_03_02529
the area of a rectangular plot is 24 times its breadth . if the difference between the length and the breadth is 10 metres , what is its breadth ?
[ "14 metres'", "5 metres'", "7.5 metres'", "data inadequate'" ]
A
l × b = 24 × b ∴ l = 24 m and l – b = 10 ∴ b = 24 – 10 = 14 m answer a
sciq
sciq_01_07007
What builds up in an artery and reduces blood flow?
[ "plaque", "surface tension", "pressure", "calcium deposits" ]
A
Plaque buildup in an artery reduces blood flow through the vessel.
openbookqa
obqa_02_01160
Pushing on a pedal is an example of
[ "force", "patching", "practice", "speed" ]
A
pushing on the pedals of a bike cause that bike to move
sciq
sciq_01_07952
Someone who believes something despite the evidence is referred to by what term that references a false belief about our planet?
[ "solid - earther", "flat-earther", "geocentric-earther", "conspiracy theorist" ]
B
Flat-earther is a term used to describe someone who believes something despite the evidence. Or who does not believe something despite the evidence. There are actually people who believe that Earth is flat. They say that satellite photos are faked. They believe that the Apollo Moon landings were faked. But there are ve...
sciq
sciq_01_04093
The renal hilum is the entry and exit site for structures servicing which organs?
[ "brains", "lungs", "ovaries", "kidneys" ]
D
Renal Hilum The renal hilum is the entry and exit site for structures servicing the kidneys: vessels, nerves, lymphatics, and ureters. The medial-facing hila are tucked into the sweeping convex outline of the cortex. Emerging from the hilum is the renal pelvis, which is formed from the major and minor calyxes in the ki...
ARC-Challenge
arc_04_03125
In studying layers of rock sediment, a geologist found an area where older rock was layered on top of younger rock. Which best explains how this occurred?
[ "Earthquake activity folded the rock layers.", "Volcanic eruptions destroyed a rock layer.", "Erosion removed several layers of rock.", "Weathering changed the layering of the rocks." ]
A
null
math_qa
mathqa_03_00031
suraj has a certain average of runs for 9 innings . in the 10 th innings he scores 200 runs thereby increasing his average by 8 runs . what is his average after the 10 th innings ?
[ "149", "190", "128", "178" ]
C
"to improve his average by 8 runs per innings he has to contribute 9 x 8 = 72 runs for the previous 8 innings . thus , the average after the 9 th innings = 200 - 72 = 128 . answer : c"
sciq
sciq_01_03535
Innate behaviors occur in all animals. however, they are less common in species with higher levels of what?
[ "hormones", "intelligence", "interdependence", "nonverbal communication" ]
B
Innate behaviors occur in all animals. However, they are less common in species with higher levels of intelligence. Humans are the most intelligent species, and they have very few innate behaviors. The only innate behaviors in humans are reflexes. A reflex is a response that always occurs when a certain stimulus is pre...
sciq
sciq_01_04015
Why is there very little evaporation in the boreal forests?
[ "temperature is too cold", "too humid", "high elevation", "too hot" ]
A
Arctic Tundra The Arctic tundra lies north of the subarctic boreal forests and is located throughout the Arctic regions of the Northern Hemisphere (Figure 20.18). Tundra also exists at elevations above the tree line on mountains. The average winter temperature is –34°C (–29.2°F) and the average summer temperature is 3°...
sciq
sciq_01_06217
Why is respiratory acidosis considered to be problematic?
[ "excess co2 in blood", "causes suffocation", "causes acid stomach", "excess oxygen in blood" ]
A
Metabolic acidosis is problematic, as lower-than-normal amounts of bicarbonate are present in the blood. The pCO2 would be normal at first, but if compensation has occurred, it would decrease as the body reestablishes the proper ratio of bicarbonate and carbonic acid/CO2. Respiratory acidosis is problematic, as excess ...
math_qa
mathqa_03_04763
two airplanes fly the same exact route from atlanta to chicago . plane a flies 200 mph while plane b flies 300 mph ( assume that simple model versus actual acceleration / deceleration near the airports ) . if plane a took off exactly 40 minutes before plane b , after how many minutes will plane b overtake plane a ?
[ "65", "80", "90", "115" ]
B
we can use some form of the equation d = rt [ distance = rate * time ] rate of plane a : 200 mph rate of plane b : 300 mph plane a will be in the sky 40 minutes longer than plane b ( 2 / 3 of an hour ) time of plane a when b overtakes it : t + ( 2 / 3 ) use 2 / 3 of an hour since the rate is in hours time of plane b wh...