question string | choices list | answer string | rationale string | dataset string |
|---|---|---|---|---|
A certain car traveled twice as many miles from Town A to Town B as it did from Town B to Town C. From Town A to Town B, the car averaged 8 miles per gallon, and from Town B to Town C, the car averaged 18 miles per gallon. What is the average miles per gallon that the car achieved on its trip from Town A through Town B... | [
"14.5",
"15",
"14",
"15.5"
] | D | Ans is B
Given d_ab = 2*d_bc
let d_ab = d and d_bc = x so d=2x | aqua_rat |
Ann and Bob drive separately to a meeting. Ann's average driving speed is greater than Bob's avergae driving speed by one-third of Bob's average driving speed, and Ann drives twice as many miles as Bob. What is the ratio W of the number of hours Ann spends driving to the meeting to the number of hours Bob spends drivin... | [
"4:3",
"3:8",
"8:3",
"3:2"
] | D | Say the rate of Bob is 3mph and he covers 6 miles then he needs 6/3=2 hours to do that.
Now, in this case the rate of Ann would be 3+3*1/3=4mph and the distance she covers would be 6*2=12 miles, so she needs 12/4=3 hours for that.
The ratio W of Ann's time to Bob's time is 3:2. | aqua_rat |
When positive integer N is divided by positive integer J, the remainder is 18. If N/J = 134.08, what is value of J? | [
"22",
"112",
"78",
"225"
] | D | When a number is divided by another number, we can represent it as : Dividend = Quotient * Divisor + Remainder
So, Dividend/Divisor = Quotient + Remainder/Divisor
Given that N/J = 134.08
Here 134 is the quotient.
Given that Remainder = 18
So, 134.08 = 134 + 18/J | aqua_rat |
The average weight of 8 person's increases by 2.5 kg when a new person comes in place of one of them weighing 65 kg. What might be the weight of the new person? | [
"85 kg",
"91 kg",
"93 kg",
"90 kg"
] | A | Total weight increased = (8 x 2.5) kg = 20 kg.
Weight of new person = (65 + 20) kg = 85 kg. | aqua_rat |
A, B and C completed a piece of work, A worked for 6 days, B for 9 days and C for 4 days. Their daily wages were in the ratio of 3:4:5. Find the daily wages of C, if their total earning was Rs.1480? | [
"217",
"100",
"228",
"772"
] | B | 3x 4x 5x
6 9 4
18x + 36x + 20x = 1480
74x = 1480 => x = 20
5x = 100 Rs. | aqua_rat |
Willem Einthoven got Nobel Prize for | [
"Penicillin",
"ECG",
"Plasmodium life cycle",
"Insulin"
] | B | List of Nobel Laureates
Willem Einthoven : ECG.
Sir Alexander Fleming : Penicillin.
Paul. H. Muller : DDT.
Sir Godfrey N.Hounsfield : Human blood groups.
Karl Landsteiner : Human blood groups.
Paul Ehrlich : Immunity.
Sir Peter Mansfield : MRI. | medmcqa |
The music class consists of 4 girls and 8 boys. How many ways can a group of 3 be formed if it has to include at least one boy? | [
"158",
"161",
"216",
"155"
] | C | Reverse combinatorics approach is preferred method on this one
Note that at least 1 boy gives clue to using this method
All combinations - four girls = answer
All combinations is 12C3 = 220
All girls 4C3 = 4
So our answer is 220-4 = 216 | aqua_rat |
In STD cases, a patient is asked to name other persons is his socio sexual group, then they are investigated. This is a example of - | [
"Mass screening",
"Contact tracing",
"Screening",
"High risk screening"
] | B | <p> In Contact tracing the sexual paners of diagnosed patients are identified, located,investigated and treated. Patients are interviewed for their sexual contacts by specially trained staff. Reference:Park&;s textbook of preventive and social medicine,K.Park,23rd edition,page no:339. <\p> | medmcqa |
P is 30% more efficient than Q. P can complete a work in 23 days. If P and Q work together, how much time will it take to complete the same work? | [
"13",
"15",
"11",
"17"
] | A | Work done by P in 1 day = 1/23
Let work done by Q in 1 day = q
q × (130/100) = 1/23
=> q = 100/(23×130) = 10/(23×13)
Work done by P and Q in 1 day = 1/23 + 10/(23×13) = 23/(23×13)= 1/13
=> P and Q together can do the work in 13 days | aqua_rat |
The pressure someone experiences as he or she dives deeper and deeper in the ocean increases linearly. On the surface, the pressure is close to 15 pounds per square inch. 33 feet below the surface, the pressure is 30 pounds. If 25000 pounds per sq inch can crush your bones, what depth is extremely dangerous for humans? | [
"45522 feet",
"25522 feet",
"55522 feet",
"None"
] | C | First, model the pressure ( p ) in terms of depth ( d ) with a linear equation.
We will find the equation p = md + b
Use (0, 15) and (33, 30) to find m
m = 30 - 15/33 - 0
m = 15/33
= 0.45
p = 0.45d + b
Use (0, 15) to find b
15 = 0.45 × 0 + b
15 = b
p = 0.45d + 15
25000 = 0.45d + 15
25000 - 15 = 0.45d + 15 - 15
24985 = ... | aqua_rat |
Jim is able to sell a hand-carved statue for $670 which was a 25% profit over his cost. How much did the statue originally cost him? | [
"$536.00",
"$588.20",
"$574.90",
"$555.40"
] | A | 670 = 1.25*X
X = 670/1.25 = 536 | aqua_rat |
The ratio 2:10 expressed as percent equals to | [
"25 %",
"90%",
"20 %",
"50 %"
] | C | Actually it means 2 is what percent of 10, which can be calculated as,
(2/10)*100 = 2* 10 = 20 | aqua_rat |
If Teena is driving at 55 miles per hour and is currently 7.5 miles behind Joe, who is driving at 40 miles per hour in the same direction then in how many minutes will Teena be 52.5 miles ahead of Joe? | [
"105",
"15",
"90",
"240"
] | D | This type of questions should be solved without any complex calculations as these questions become imperative in gaining that extra 30-40 seconds for a difficult one.
Teena covers 55 miles in 60 mins.
Joe covers 40 miles in 60 mins
So teena gains 15 miles every 60 mins
Teena need to cover 7.5 +52.5 miles.
Teena can cov... | aqua_rat |
Modern monitors to measure ETCO2 make use of ? | [
"Infrared absorption spectroscopy",
"Laser technology",
"Scatter technology",
"Ultra violet rays"
] | A | Infrared absorption spectroscopy Measurements of variations in the respiratory cycle of expired carbon di oxide by displayed waveform and by absolute numerical values is defined as Capnography and Capnometry respectively. Measurement of the exhaled CO2 at the level of upper airway at the end of expiration (when CO2 is ... | medmcqa |
Which of the following is insulin dependent for its action? | [
"GLUT 4",
"GLUT 3",
"GLUT 2",
"GLUT 1"
] | A | GULT 4 is located in adipose tissue, hea and skeletal muscles, where it is functionally associated with hexokinase II. It caries out insulin-stimulated glucose uptake. | medmcqa |
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: | [
"14%",
"12%",
"13%",
"18%"
] | A | 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. | aqua_rat |
A man buy a book in Rs50 & sale it Rs100. What is the rate of profit ??? | [
"28%",
"100%",
"10%",
"30%"
] | B | cp=50
sp=100
profit=100-50=50
%=50/50*100=100% | aqua_rat |
A man is 24 years older than his son. In two years, his age will be twice the age of his son. What is the present age of his son? | [
"22 Years",
"25 Years",
"20 Years",
"23 Years"
] | A | Let present age of the son =x=x years
Then, present age the man =(x+24)=(x+24) years
Given that, in 22 years, man's age will be twice the age of his son
⇒(x+24)+2=2(x+2)⇒x=22 | aqua_rat |
What type of bonds are the attractive forces between the positively charged nuclei of the bonded atoms and one or more pairs of electrons that are located between the atoms? | [
"gravitational",
"active",
"reactive",
"covalent"
] | D | Note that there is a system for naming some polyatomic ions; -ate and -ite are suffixes designating polyatomic ions containing more or fewer oxygen atoms. Per- (short for “hyper”) and hypo- (meaning “under”) are prefixes meaning more oxygen atoms than -ate and fewer oxygen atoms than -ite, respectively. For example, pe... | sciq |
Bullock likes to keep a spare tyre in his car every time. On a certain day, he travels 1, 30,000 km and just to make the most of all the tyres, he changes the tyres between his journey such that each tyre runs the same distance.
What is the distance traveled by each tyre? | [
"104,000",
"90,000",
"80,000",
"60,000"
] | A | The distance traveled by each tyre: | aqua_rat |
An industrial loom weaves 0.128 metres of cloth every second. Approximately, how many seconds will it take for the loom to weave 26 metre of cloth ? | [
"175 seconds",
"155 seconds",
"203 seconds",
"115 seconds"
] | C | Let the time required by x seconds.
Then, More cloth means More time (Direct Proportion)
So,
0.128 : 1 :: 26 : x => x = {\color{Blue} \frac{26\times 1}{0.128}}
=> x = 203.13
So time will be approx 203 seconds | aqua_rat |
A known HIV positive patient is admitted in an isolation ward after an abdominal surgery following an accident. The resident doctor who changed his dressing the next day found it to be soaked in blood. Which of the following would be right method of choice of discarding the dressing | [
"Pour 2% Lysol on the dressing material and send it for incineration in a appropriate bag",
"Put the dressing material directly in an appropriate bag and send for incineration",
"Pour 5% hypochlorite on the dressing material and send it for incineration in an appropriate bag",
"Pour 1% hypochloric on the dres... | B | Solid wastes contaminated with blood and fluids including cotton, dressing, soiled plaster castes comes under Category no 6. - category no 6 wastes are discarded in appropriate colour plastic bag and treated by incineration, autoclaving and microwaving. Reference: Park&;s textbook of preventive and social medicine, 23r... | medmcqa |
the sum of 5th and 21th term of A.P. is equal to the sum of 8th , 15th and 13 th term . find the term which is 0 | [
"14",
"10",
"12",
"11"
] | B | t5 + t21 = t8 + t15 + t13
=> a+4d + a+20d = a+7d + a+14d + a+12d
=> a + 9d = 0
=> t10 = 0 i.e. 10th term is zero. | aqua_rat |
A fruit salad mixture consists of apples, peaches, and grapes. There are 2 times as many pounds of apples as grapes and 3 times as many pounds of peaches as grapes. If a mixture that has an average (arithmetic mean) of 9 pounds per fruit, how many more pounds of apples than grapes does the mixture have? | [
"12",
"15",
"9",
"3"
] | D | A+P+G= 9*2
A=2G
P=3G
3G+2G+G= 9*2
G= 9*2/6= 3
A= 3*2=6
Difference = 6-3=3 | aqua_rat |
xy=1 then what is (3^(x+y)^2) / (3^(x-y)^2) | [
"16",
"32",
"4",
"81"
] | D | (x+y)^2 - (x-y)^2
(x+y+x-y)(x+y-x+y)
(2x)(2y)
4xy
4
3^4 = 81 | aqua_rat |
Which fuels provide most of the world’s energy? | [
"artificial fuels",
"coal fuels",
"pattern fuels",
"fossil fuels"
] | D | Figure below shows the mix of energy resources used worldwide in 2006. Fossil fuels still provide most of the world’s energy, with oil being the single most commonly used energy resource. Natural gas is used less than the other two fossil fuels, but even natural gas is used more than all renewable energy resources comb... | sciq |
Hypocalcemia due to calcitonin is by | [
"Decreased intestinal reabsorption",
"Decreased bone resorption",
"Decreased excretion in kidney",
"Decreased renal reabsorption"
] | B | Calcitonin lowers circulating calcium and phosphate levels. It exes its calcium-lowering effect by inhibiting bone resorption. This action is direct, and calcitonin inhibits the activity of osteoclasts in vitro. It also increases Ca2+ excretion in the urine. More hormone is secreted in young individuals, and it may pla... | medmcqa |
A man has Rs. 192 in the denominations of one-rupee notes, five-rupee notes and ten-rupee notes. The number of notes of each denomination is equal. What is the total number of notes that he has ? | [
"22",
"28",
"90",
"36"
] | D | Let number of notes of each denomination be x.
Then, x + 5x + 10x = 192 16x = 192 x = 12.
Hence, total number of notes = 3x = 36. | aqua_rat |
Some students are standing in a circle in which 6th and the 16th student are standing opposite to each other. find how many students were present there. | [
"20",
"15",
"30",
"10"
] | A | (n/2) - x = 6
n - x = 16
solving these two => n = number of students = 20 | aqua_rat |
Most sensitive method to diagnose thyroid function is: | [
"T4",
"T3",
"TSH",
"Thyroglobulin"
] | C | TSHRef: Bailey and Love Principles and Practice of Surgery, 26th ed p-743* Most sensitive and specific test to detect hypothyroidism and hyperthyroidism is TSH ASSAY* Total T4: Reflects output from thyroid gland* Total T3: More indicative of peripheral thyroid metabolism, hence not useful for screening | medmcqa |
Hemoglobin is a large molecule made up of proteins and iron. it consists of four folded chains of a protein called this? | [
"insulin",
"peptide",
"globin",
"histone"
] | C | Hemoglobin Hemoglobin is a large molecule made up of proteins and iron. It consists of four folded chains of a protein called globin, designated alpha 1 and 2, and beta 1 and 2 (Figure 18.7a). Each of these globin molecules is bound to a red pigment molecule called heme, which contains an ion of iron (Fe2+) (Figure 18.... | sciq |
Present ages of Sameer and Anand are in the ratio of 5 : 4 respectively. Five years hence, the ratio of their ages will become 11 : 9 respectively. What is Anand's present age in years? | [
"45",
"40",
"24",
"56"
] | B | Let the present ages of Sameer and Anand be 5x years and 4x years respectively.
Then, (5x + 5/4x + 5)=11/9
9(5x + 5) = 11(4x + 5)
45x + 45 = 44x + 55
45x - 44x = 55 - 45
x = 10.
Anand's present age = 4x = 40 years. | aqua_rat |
A 36 year old female presents to the outpatient department with generalized weakness and weight gain. On examination, diffuse non-tender enlargement of thyroid gland is present. Fine needle aspiration cytology shows lymphocytic infiltration with germinal centers and epithelial hurthle cells. Which of the following is m... | [
"Anti microsomal antibody",
"Anti TSH receptor antibody",
"Anti histone antibody",
"Anti mitochondrial antibody"
] | A | Anti-microsomal antibodyCHRONIC LYMPHOCYTIC or HASHIMOTO'S THYROIDITIS or NON GOITROUS or STRUMA LYMPHOMATOSAMost common cause of hypothyroidism in non-iodine deficiency regionsChronic autoimmune disorder with family history of autoimmune diseaseMC in women at menopausePainless enlargement of both lobes, which are firm... | medmcqa |
The length of a rectangular plot is 20 metres more than its breadth. If the cost of fencing the plot @ Rs. 26.50 per metre is Rs. 9540, what is the length of the plot in metres? | [
"400",
"200",
"300",
"100"
] | D | Let length of plot = L meters, then breadth = L - 20 meters
and perimeter = 2[L + L - 20] = [4L - 40] meters
[4L - 40] * 26.50 = 9540
[4L - 40] = 9540 / 26.50 = 360
4L = 400 | aqua_rat |
A jogger running at 9 km/hr along side a railway track is 240 m ahead of the engine of a 150 m long train running at 45 km/hr in the same direction. In how much time will the train pass the jogger? | [
"16 sec",
"18 sec",
"39 sec",
"17 sec"
] | C | Speed of train relative to jogger = 45 - 9 = 36 km/hr.
= 36 * 5/18 = 10 m/sec.
Distance to be covered = 240 + 150 = 390 m.
Time taken = 390/10 = 39 sec. | aqua_rat |
A 100-litre mixture of milk and water contains 30.25 litres of milk. 'x' litres of this mixture is removed and replaced with an equal quantum of water. If the process is repeated once, then the concentration of the milk stands reduced at 25%. What is the value of x? | [
"8 litres",
"9.1 litres",
"12 litres",
"6 litres"
] | B | Working formula ...
Initial Concentration*Initial Volume=Final Concentration*Final Volume.
Let X is the part removed from 100 lts.
30.25%(1-X/100)^2 = 25% * 100%
(1-x/100)^2=25/30.25------>(1-x/100)^2=(5/5.5)^2
100-X=500/5.5
x=9.1... | aqua_rat |
In how many ways can a cricket eleven be chosen out of a batch of 15 players? | [
"2135",
"1365",
"1523",
"2165"
] | B | Required number of ways = 15C11 = 15C (15-11) = 15C4
15C4 = (15*14*13*12)/(4*3*2*1) = 1365 | aqua_rat |
The left testicular vein drains into which of the following veins? | [
"Left common iliac vein",
"Left renal vein",
"Inferior vena cava",
"Left internal iliac vein"
] | B | The left testicular vein drains into the left renal vein. The right testicular vein drains directly into the inferior vena cava. This difference in venous drainage is believed to explain the greater incidence of varicocele on the left side than on the right. The venous drainage from the penis is to the internal vein, w... | medmcqa |
The number 155 can be written as the sum of the squares of 3 different positive integers. What is the sum of these 3 integers? | [
"16",
"21",
"15",
"14"
] | B | 7^2+5^2+9^2=49+25+81 = 155
7+5+9 =21 | aqua_rat |
In the Land of Oz only one or two-letter words are used. The local language has 66 different letters. The parliament decided to forbid the use of the seventh letter. How many words have the people of Oz lost because of the prohibition? | [
"65",
"67",
"131",
"66"
] | C | The seventh letter (Let it be @) can be used with other 65 in two type of arrangents
one when seventh letter is in 1st slot @_ (65 ways)
another, when seventh letter is in 2nd slot _@ (65 ways)
seventh letter (@) itself
Lost words = 1 + 65 + 65 = 131 | aqua_rat |
A boy is travelling from his home to school at 5 km/hr and reached 7 min late. Next day he traveled at 10 km/hr and reached 8 min early. Distance between home and school? | [
"4.5km",
"3.5km",
"2.5km",
"6.5km"
] | C | Let the distance be x
T1 = x/5 hr
T2 = x/10hr
Difference in time = 7+8 = 15 =1/4hr
x/5-x/10 = 1/4
x/10 = 1/4
x = 2.5 km | aqua_rat |
A is 25% bigger than B B is 20% less than C then the relation between A, B, C ? | [
"5:4:8",
"5:4:6",
"6:4:5",
"5:4:5"
] | D | Assume C = 100 Then
B is 20%less than C
Therefore, 20*100/100 = 20 ;
B= 100-20 = 80
B =80
A = 25% more than B :
So,
A = B + 25% of B
= 80 + 20
= 100
So, the proportion are 100:80:100 = 5:4:5 | aqua_rat |
Lokesh started a business with Rs.30,000 and Ramesh joined him afterwards with Rs.30,000. If profits of both are same after one year then for how many months did Ramesh invest his money? | [
"12 months",
"6 months",
"5 months",
"8 months"
] | A | let us assume ramesh has joined after "X" moths.
It has been told that profit is same
Therfore 30,000*12=30,000*X
X=12 months | aqua_rat |
Which of the following structure is not related to cavernous sinus? | [
"Optic nerve",
"Abducent nerve",
"Ophthalmic nerve",
"Trochlear nerve"
] | A | Five structures in lateral wall of cavernous sinus1. Oculomotor nerve 2. Trochlear nerve 3. Ophthalmic nerve 4. Maxillary nerve 5. Trigeminal ganglion Note: Internal carotid aery wrapped in its venous and sympathetic plexus along with abducent nerve passes through the center of the cavernous sinus. | medmcqa |
If x is an integer, which of the following is a possible value of Q=(x^2 +2x – 7)/9? | [
"-2.4",
"1.166 repeating",
"4.555 repeating",
"0.268"
] | C | x is an integer, which of the following is a possible value of Q=(x^2 +2x - 7)/9?
Used process of elimination
A. -2.4
when this is multiplied by 9, x is not an integer
B. 0.268
when this is multiplied by 9, x is not an integer
C. 1.166 repeating
when this is multiplied by 9, x is not an integer
D. 4.555 repeating
E. 8.... | aqua_rat |
What is the way animals act either alone or with other animals called? | [
"animal behavior",
"animal way",
"animal point",
"animal lifestyle"
] | A | Barking, purring, and playing are just some of the ways in which dogs and cats behave. These are examples of animal behaviors. Animal behavior is any way that animals act, either alone or with other animals. | sciq |
In what ratio should a variety of Rice costing Rs. 20 per kg be mixed with another variety of Rice costing Rs. 31.50 per kg to obtain a mixture costing Rs. 23.75 per kg? | [
"30 : 14",
"16 : 31",
"31 : 15",
"15 : 31"
] | C | Let us say the ratio of the quantities of cheaper and dearer varieties = x : y
By the rule of allegation, x/y = (31.50 - 23.75) / (23.75 - 20) = 31/15 | aqua_rat |
What is the largest integer n such that
n2- 38/n + 1
is an integer? | [
"None of these",
"72",
"76",
"36"
] | D | Doing the long division algebraically, we get a quotient of n-1 with a remainder of
-37. In order for the division to give an integer, n+1 must divide -37 evenly. So n+1 = 37,
and n = 36. | aqua_rat |
If 60! is written out as an integer, with how many consecutive 0’s will that integer end? | [
"42",
"12",
"6",
"14"
] | D | n:-
60/5+60/52=12+2=14 | aqua_rat |
A 600 meter long train crosses a signal post in 40 seconds. How long will it take to cross a 3 kilometer long bridge, at the same speed? | [
"4 min 5 sec",
"4 min",
"Data inadequate",
"5 min"
] | B | S = 600/40 = 15 mps
S = 3600/15 = 240 sec = 4 min | aqua_rat |
Name the virus that causes cold sores. | [
"Epstein-Barr",
"eboli",
"herpes virus",
"AIDS"
] | C | Metju12. Cold sores are caused by a herpes virus . Public Domain. | sciq |
A coin is tossed seven times. What is the probability that there is at the least one tail? | [
"31/10",
"31/37",
"31/19",
"127/128"
] | D | Let P(T) be the probability of getting least one tail when the coin is tossed seven times.
= There is not even a single tail.
i.e. all the outcomes are heads.
= 1/128; P(T) = 1 - 1/128= 127/128 | aqua_rat |
The least number which when divided by 5, 6 , 7 and 8 leaves a remainder 3, but when divided by 9 leaves no remainder, is: | [
"1683",
"2523",
"1677",
"3656"
] | A | L.C.M. of 5, 6, 7, 8 = 840.
Required number is of the form 840k + 3
Least value of k for which (840k + 3) is divisible by 9 is k = 2.
Required number = (840 x 2 + 3) = 1683. | aqua_rat |
Which of the following occurs along with glucose transpo into a cell: | [
"Potassium transpo",
"Sodium sympo",
"Amino acid transpo",
"Sodium antepo"
] | B | A i.e. Sodium sympoGlucose and Na+ share the same Co-transpoer (or sympo) - the sodium dependent glucose transpoer: (SGLT - sodium glucose co- transpoer)Q.Sodium dependent glucose transpoer (sympo)- Since the intracellular Nat concentration is low in intestinal & renal cells, Nat moves into the cells along its concentr... | medmcqa |
Changing the shape of an elastic material gives it what type of energy? | [
"potential",
"thermal",
"practical",
"initial"
] | A | Changing the shape of an elastic material gives it potential energy. | sciq |
Out of first 20 natural numbers, one number is selected at random. The probability that it is either an even number or a prime number is? | [
"17/20",
"17/98",
"17/22",
"17/27"
] | A | n(S) = 20
n(Even no) = 10 = n(E)
n(Prime no) = 8 = n(P)
P(EᴜP) = 10/20 + 8/20 - 1/20 = 17/20 | aqua_rat |
4/15 of 5/7 of a number is greater than 4/9 of 2/5 of the same number by 8. What is half of that number? | [
"314",
"312",
"315",
"311"
] | C | Let no. be x
4/15*5/7*x - 4/9*2/5*x =8
by further solving
20x/105- 8x/45=8
4x/315=8
x=630
we have to find x/2
=630/2=315 | aqua_rat |
What is the least value of x. So that 4x569 is divisible by 3? | [
"0",
"7",
"2",
"5"
] | A | The sum of the digits of the number is divisible by 3, then the number is divisible by3.
4 + x +5 + 6 + 9 =24 + x
Least value of x may be 0
Therefore 24+0 = 24 is divisible by 3. | aqua_rat |
The speed of a boat in upstream is 100 kmph and the speed of the boat downstream is 180 kmph. Find the speed of the boat in still water and the speed of the stream? | [
"99",
"40",
"23",
"88"
] | B | Speed of the boat in still water = (100+180)/2 = 70 kmph. Speed of the stream = (180-100)/2 = 40 kmph. | aqua_rat |
Bellini duct cancer is seen in which of the following? | [
"Hea",
"Spleen",
"Kidney",
"Liver"
] | C | Bellini duct cancer is an aggressive variant of Renal Cell Cancer (RCC) MC Benign tumor of kidney; ONCOCYTOMA MC Malignant tumor of kidney: Clear Cell Cancer MC Aggressive tumor of kidney: Bellini duct (Collecting Duct Cancer) | medmcqa |
If x = 3d, where d is a prime number greater than 2, how many different positive even divisors does x have, including x? | [
"0",
"1",
"It cannot be determined from the information given",
"2"
] | A | d is prime greater than 2 thus d is odd
3d is odd
Thus no even factors | aqua_rat |
Mr.Jones gave 40% of the money he had to his wife. He also gave 20% of the remaining amount to his 3 sons. and half of the amount now left was spent on miscellaneous items and the remaining amount of Rs.12000 was deposited in the bank. How much money did Mr.jones have initially? | [
"62000",
"40000",
"45000",
"50000"
] | D | Let the initial amount be x,
Amount given to his wife =(40/100)x=2x/5
Balance = (x-(2x/5)) = 3x/5
Amount given to his wife = (20/100)*(3x/5) = 3x/25
Balance = 3x/5-3x/25 = 12x/25
Amountt spent on miscellaneous items = (1/2)*(12x/25) = 6x/25 which is equal to 12000
Hence,
=> 6x/25 = 12000
=> x = 50000 | aqua_rat |
In the floor of a particular kitchen owned by an abstract artist, each row of tiles to the right of the first row contains two fewer tiles than the row directly to its left. If there are nine rows in all and a total of 540 tiles in the floor, how many tiles does the leftmost row contain? | [
"68",
"52",
"64",
"60"
] | A | This question can be solved in a variety of ways: with algebra, by TESTing THE ANSWERS and by using a great Number Property shortcut involving consecutive integers.
We're given a few facts to work with:
1) There are 9 rows of tiles.
2) When going from 'left to right', each row contains TWO FEWER tiles than the one next... | aqua_rat |
Which is most likely to cause an animal to shiver? | [
"5 degrees celsius",
"42 degrees Fahrenheit",
"6 degrees Celsius",
"8 degrees Celsius"
] | A | 5 degrees Celsius is most likely to cause an animal to shiver, as this temperature is quite cold and can trigger shivering as a response to generate heat and maintain body temperature. | openbookqa |
Complement C1 is produced by | [
"Intestinal epithelium",
"Macrophages",
"Liver",
"Spleen"
] | A | C1 - Intestinal epithelium
C2, C4 - Macrophages
C5, C8 - Spleen
C3, C6, C9 - Liver | medmcqa |
One day a car rental agency rented 2/3 of its cars, including 3/5 of its cars with CD players. If 3/5 of its cars have CD players, what percent of the cars that were not rented had CD players? | [
"17/20",
"3/5",
"7/10",
"18/25"
] | D | The cars with CD players which were not rented is (2/5)(3/5) = 6/25 of all the cars.
The cars which were not rented is 1/3 of all the cars.
The percent of non-rented cars which had CD players is (6/25) / (1/3) = 18/25 | aqua_rat |
Catherine worked for h hours each day for d consecutive days. If she earns $5.50 per hour, what is the total amount she earned? | [
"5.50 + d + h",
"5.50 + dh",
"5.50h + d",
"5.50dh"
] | D | H hours for d days.
Income each day = 5.5*h
Total income = 5.5*h*d | aqua_rat |
Name the law that determines as to which rock layers are younger or older than others. | [
"law of gravity",
"law of apposition",
"geologic theory",
"law of superposition"
] | D | In this lesson, you read how scientists determine the relative ages of sedimentary rock layers. The law of superposition determines which rock layers are younger or older than others. | sciq |
The average of marks obtained by 120candidates was 35. If the avg of marks of passed candidates was 39 & that of failed candidates was 39 and that of failed candidates was 15, the no.of candidateswho passed the examination is? | [
"120",
"100",
"140",
"90"
] | B | Let the number of candidate who passed = y
Then, 39y + 15(120 - y) =120 x 35
⇒ 24y= 4200 -1800
∴ y= 2400 / 24 = 100 | aqua_rat |
Treatment of 42 year old obese man with blood glucose 450 mg, urine albumin 2+sugar 4+ketone 1+ is | [
"Insulin",
"Metformin",
"Glibenclamide",
"Glipizide"
] | A | (Insulin): Presence of sugar and ketones in urine and the presence of hyperglycemia (400 mg Glucose) suggests a diagnosis of Diabetic ketoacidosis. The treatment of choice in Diabetic ketoacidosis is Insulin. | medmcqa |
Two identical machines have the ability to produce both nuts and bolts. However, it takes 1 second to produce a bolt but 2 seconds to produce a nut. What is the fastest the two machines, working together, can produce 500 nuts and 500 bolts? | [
"500 seconds",
"2,000 seconds",
"750 seconds",
"250 seconds"
] | C | To minimize the amount of time, we should make both machines work all the time while producing 500 nuts and 500 bolts.
Two machines to produce 500 bolts will need (500*1)/2 = 250 seconds.
Two machines to produce 500 nuts will need (500*2)/2 = 500 seconds.
Total = 250+500=750. | aqua_rat |
At exactly what time past 9:00 will the minute and hour hands of an accurate working clock be precisely perpendicular to each other for the first time? | [
"20 13/17 minutes past 7:00",
"22 4/9 minutes past 7:00",
"21 3/23 minutes past 7:00",
"21 9/11 minutes past 9:00"
] | D | 5.5 is the angle between minute n hour, this is what I was taught...so shouldn't it be solve by dividing 90 with 5.5?
That would have been the case if your initial difference between the hour and the minute hand was = 0 degrees or in other words, both minute and hour hands were at the same location. But as per the ques... | aqua_rat |
If 0.5% of A =65 paise, then the value of A is ? | [
"None",
"Rs. 130",
"Rs. 1.70",
"Rs. 4.25"
] | B | Answer
∵ 0.5/100 of A = 65/100
∴ A = Rs. (65 / 0.5) = Rs. 130 | aqua_rat |
Statement: "You are appointed as a programmer with a probation period of 1 year and your performance will be reviewed at the end of the period for confirmation."
Assumptions:
The performance of an individual generally is not known at the time of appointment offer.
Generally an individual tries to prove his worth in the... | [
"Only assumption II is implicit",
"Either I or II is implicit",
"Both I and II are implicit",
"Only assumption I is implicit"
] | C | The performance of the individual has to be tested over a span of time as the statement mentions. So, I is implicit. The statement mentions that the individual's worth shall be reviewed (during probation period) before confirmation. So, II is also implicit. | aqua_rat |
Most common acute complication of dialysis is - | [
"Muscle cramps",
"Hypotension",
"Dementia",
"Bleeding"
] | B | Hypotension is the most common acute complication of hemodialysis particularly among patients with diabetes mellitus.
Factors involved are
ÿ. Excessive ultrafiltration, with inadequate compensatory
vascular filling, impaired vasoactive or autonomic response, osmolar shis, overzealous use of anhypertensives. | medmcqa |
At the time of marriage, a man was 7 years elder to his wife. 10 years after their marriage, his age is 4/3 times the age of his wife. What was wife's age at the time of marriage ? Choose one answer. | [
"30 years",
"36 years",
"24 years",
"11 years"
] | D | let wifes age= x
husband age = x+7
now after 10 years of mrg x+10 wifes age
x+7+10 husbands age
4/3(x+10)=x+7+10
after solving x=11 | aqua_rat |
The perimeter of one square is 48 cm and that of another is 20 cm. Find the perimeter and the diagonal of a square which is equal in area to these two combined? | [
"15√2 cm",
"17√2 cm",
"13√2 cm",
"18√2 cm"
] | C | 4a = 48 4a = 20
a = 12 a = 5
a2 = 144 a2 = 25
Combined area = a2 = 169 => a = 13
d = 13√2 | aqua_rat |
A speed of 7 metres per second is the same as : | [
"25.2 km/hr",
"28.64 km/hr",
"30 km/hr",
"22 km/hr"
] | A | 7 m/sec = [7 * 18/5] km/hr = 25.2 km/hr. | aqua_rat |
What makes sunsets appear red? | [
"floral scattering",
"wavelength scattering",
"rayleigh scattering",
"reflection scattering"
] | C | Beautiful sunsets are another manifestation of Rayleigh scattering that occurs when light travels long distances through the atmosphere. The blue light and some green is scattered away, making the sun appear red. | sciq |
Which of the following is the leading cause of GHRH mediated acromegaly? | [
"Carcinoid tumour",
"Pluri-hormonal adenoma",
"Hypothalamic Hamaoma",
"Choristoma"
] | A | The leading cause of GHRH mediated acromegaly is chest or abdominal carcinoid tumour. It will present with elevated GH levels and pituitary enlargement on MRI leading to high probability of misdiagnosis as pituitary adenoma. GHRH levels can be used to differentiate a pituitary vs extra pituitary aetiology. | medmcqa |
Solve 8x – 4 = 4x + 11 | [
"5(1/3)",
"6(1/3)",
"9(1/3)",
"3(3/4)"
] | D | 8x - 4 = 4x + 11
=> 8x - 4x = 11 + 4
=> 4x = 15 => x = 15/3 = 3(3/4). | aqua_rat |
If A = x% of y and B = y% of x, then which of the following is true? | [
"Relationship between A and B cannot be determined.",
"If x is smaller than y, then A is greater than B.",
"A is greater than B",
"None of the above"
] | D | IF....
X = 50
Y = 100
A = 50% of 100 = 50
B = 100% of 50 = 50
Answer A: A is smaller than B.This is NOT true.
Answer B: A is greater than B. This is NOT true.
Answer C: Relationship between A and B cannot be determined. While it would take additional TESTs to prove, A always = B, so the relationship IS known. This is N... | aqua_rat |
A pot of cold water, with heat now applied, may be noted to have reached its boiling point when | [
"bubbles are seen",
"food is cold",
"water is warm",
"salt is added"
] | A | The presence of bubbles indicates that the water is transitioning from a liquid to a gas, which occurs at the boiling point as the water reaches 100 degrees Celsius at standard atmospheric pressure. | openbookqa |
Two trains 160 m and 160 m long run at the speed of 60 km/hr and 40 km/hr respectively in opposite directions on parallel tracks. The time which they take to cross each other is? | [
"10.9",
"11.52",
"10.7",
"10.52"
] | B | Relative speed = 60 + 40 = 100 km/hr.
= 100 * 5/18 = 250/9 m/sec.
Distance covered in crossing each other = 160 + 160 = 320 m.
Required time = 320 * 9/250
= 11.52 sec. | aqua_rat |
Which of the following fraction is smallest? | [
"23/28",
"15/19",
"21/24",
"14/15"
] | B | 23/28 =0.821
14/15 = 0.933
15/19 = 0.7894
21/24 = 0.875
So, 15/19 = 0.7894 is smallest. | aqua_rat |
The drug NOT used in acute asthma is- | [
"Monteleukast",
"Salbutamol",
"Hydrocoisone",
"Ipratropium"
] | A | Monteleukast Monteleukast and zafirleukast are indicated for prophylactic therapy of mild to moderate asthma as an alternative to inhaled coicosteroids. However they are not used to terminate acute attack of asthma. | medmcqa |
Chronic urethral obstruction due to benign prostatic hyperplasia can lead to the following change in kidney parenchyma: | [
"Hyperplasia",
"Dysplasia",
"Hyperophy",
"Atrophy"
] | D | Chronic urethral obstruction because of urinary calculi, prostatic hyperophy, tumors, normal pregnancy, uterine prolapse or functional disorders cause hydronephrosis which by definition is used to describe dilatation of renal pelvis and calyces associated with progressive atrophy of the kidney due to obstruction to the... | medmcqa |
A man traveled a total distance of 900 km. He traveled one-third of the whole trip by plane and the distance traveled by train is two-thirds of the distance traveled by bus. If he traveled by train, plane and bus, how many kilometers did he travel by bus? | [
"320",
"360",
"240",
"280"
] | B | total distance traveled = 900 km.
distance traveled by plane = 300 km.
distance traveled by bus = x
distance traveled by train = 2x/3
x + 2x/3 + 300 = 900
5x/3 = 600
x = 360 km | aqua_rat |
If a man can cover 32 metres in one second, how many kilometres can he cover in 3 hours 45 minutes? | [
"1767 km",
"162 km",
"432 km",
"118 km"
] | C | 32 m/s = 32 * 18/5 kmph
3 hours 45 minutes = 3 3/4 hours = 15/4 hours
Distance = speed * time = 32 * 18/5 * 15/4 km = 432 km. | aqua_rat |
Tom can hit a target 3 times in 6 shots, Karan can hit the target 2 times in 6 shots & Ashwini can hit 4 times in 4shots. What is the probability that at least 2 shots hit the target ? | [
"3/11",
"1/2",
"3/7",
"2/3"
] | D | Ashwini hits the target definitely, hence required probability that atleast 2 shots hit the target is given by
Karan hits tha target and Raja not hit the target.
or
Karan does not hit the target and Raja hits the target.
or.
Karan hits the target and Raja hits the target
= 2/6 x 3/6 + 4/6 x 3/6 + 2/6 x 3/6
= 24/36 = 2/... | aqua_rat |
The instructions state that Cheryl needs 4/9 square yards of one type of material and 2/3 square yards of another type of material for a project. She buys exactly that amount. After finishing the project, however, she has 8/18 square yards left that she did not use. What is the total amount of square yards of material ... | [
"2/3",
"1 1/9",
"1/12",
"2 1/9"
] | A | Total bought = 4/9+2/3
left part 8/18--->4/9
so used part 4/9+2/3-4/9=2/3 | aqua_rat |
CASPAR criteria is used in diagnosis of - | [
"Rheumatoid arthritis",
"Reactive synnovitis",
"Ankyosing spondylitis",
"Psoriatic arthritis"
] | D | Psoriatic arthritis o Classification criteria for psoriatic arthritis (CASPAR) is used for the diagnosis of psoriatic arthropathy.The CASPAR (classification Criteria for Psoriatic Arthritis) CriteriaTo meet the CASPAR criteria a patient must have inflammatory articular disease (joint, spine, or entheseal) with 13 point... | medmcqa |
An seller earns an income of Re 3 on the first day of his business. On every subsequent day, he earns an income which is just thrice of that made on the previous day. On the 15th day of business, he earns an income of: | [
"20",
"25",
"36",
"22"
] | C | 2nd day he earns = 3(2 - 3)
3rd day he earns = 3(3 - 3)
On 15th day he earns 3(15 -3) = 36 rupees | aqua_rat |
Three candidates contested an election and received 1136, 7636 and 11628 votes respectively. What percentage of the total votes did the winning candidate go? | [
"90%",
"60%",
"57%",
"65%"
] | C | Total no of votes polled
= ( 1136 + 7636 + 11628)
= 20400.
Required percentage = [11628 / 20400 x 100]%
= 57%. | aqua_rat |
If a^5 ≤ a, which of the following must be true?
I. –1 ≤ a ≤ 0
II. a=0
III. 0 ≤ a ≤ 1 | [
"None of the above",
"II only",
"III only",
"I and III only"
] | A | The trick here is more on the answer choices.
Look at I II and III. all are right (pick out some numbers).
Therefore I was totally confused because non of the answers had the right answer (I II and III)
I finally chose D, but hesitate between A and D quite a long time...
This is a tricky tricky question, since it takes... | aqua_rat |
A person buys an article at $1200. At what price should he sell the article so as to make a profit of 40%? | [
"1900",
"1600",
"1680",
"1230"
] | C | C
1680
Cost price = $1200
profit = 40% of 1200 = $480
Selling price = Cost price + Profit | aqua_rat |
Aman started a business investing Rs. 70,000. Rakhi joined him after six months with an amount of Rs. 1,05,000 and Sagar joined them with Rs. 1.4 lakhs after another six months. The amount of profit earned should be distributed in what ratio among Aman, Rakhi and Sagar respectively, 3 years after Aman started the busin... | [
"12:17:16",
"12:35:16",
"13:15:16",
"12:15:16"
] | D | Aman : Rakhi : Sagar = (70000 * 36) : (105000 * 30) : (140000 * 24)
= 12:15:16 | aqua_rat |
A train running at the speed of 60 km/hr crosses a pole in 36 seconds. What is the length of the train? | [
"765 m",
"176 m",
"600 m",
"100 m"
] | C | Speed=(60 * 5/18) m/sec = (50/3) m/sec Length of the train
= (Speed x Time) = (50/3 * 36) m
= 600 m. | aqua_rat |
Which of the following conditions cause an over growth of epiphysis? | [
"Hemophilia",
"Osteogenisis imperfecta",
"Marfan's syndrome",
"Paget's disease"
] | A | Patients with hemophilia can suffer from hemahrosis even after minor trauma. Long-term sequelae of multiple bouts of hemahrosis include cailage damage, subaicular cysts, osteopenia, and enlarged epiphyses. The combination of intercondylar notch widening and widened epiphysis is seen only in haemophilia and juvenile rhe... | medmcqa |
Middle lobe of prostrate is present in between: (PGI June 2008) | [
"Prostatic urethra & Ejaculatory' duct",
"Pubis and rectum",
"Ejaculation duct & pubis",
"Prostatic u reth ra & rectu m"
] | A | (Prostatic urethra & ejaculatory duct) Middle lobe of prostate lies behind the upper part of the urethra and in front of the ejaculatory ductQ, just below the neck of the bladderQ"- BDC4th/Vol II -372Fig.; Saggital section of a prostate that had undergone benign enlargement of the median lobe. Note the bladder pouch fi... | medmcqa |
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