dataset
stringclasses
5 values
id
stringlengths
6
18
question
stringlengths
3
1.92k
choices
listlengths
1
36
answer
stringclasses
5 values
aqua_train
aqua_train_76910
Two employees X and Y are paid a total of Rs. 572 per week by their employer. If X is paid 120 percent of the sum paid to Y, how much is Y paid per week?
[ "A)s.250", "B)s.280", "C)s.290", "D)s.260", "E)s.300" ]
D
aqua_train
aqua_train_34480
A car gets 28 miles to the gallon. If it is modified to use a solar panel, it will use only 80 percent as much fuel as it does now. If the fuel tank holds 15 gallons, how many more miles will the car be able to travel, per full tank of fuel, after it has been modified?
[ "A)85", "B)90", "C)95", "D)100", "E)105" ]
E
aqua_train
aqua_train_11555
How many ways are there to award a gold, silver and bronze medal to 11 contending teams?
[ "A)11 x 10 × 9", "B)10!/(3!7!)", "C)10!/3!", "D)360", "E)300" ]
A
aqua_train
aqua_train_24353
If @ is a binary operation defined as the difference between an integer n and the product of n and 5, then what is the largest positive integer n such that the outcome of the binary operation of n is less than 14?
[ "A)1", "B)2", "C)3", "D)4", "E)5" ]
C
aqua_train
aqua_train_33222
If an item that originally sold for z dollars was marked up by x percent and then discounted by y percent, which of the following expressions R represents the final price of the item?
[ "A)R=(10,000z + 100z(x – y) – xyz)/10,000", "B)R=(10,000z + 100z(y – x) – xyz)/10,000", "C)R=(100z(x – y) – xyz)/10000", "D)(100z(y – x) – xyz)/10000", "E)10000 /(x – y)" ]
A
aqua_train
aqua_train_72883
Sides of a rectangular park are in the ratio 3: 2 and its area is 3750 sq m, the cost of fencing it at 50 ps per meter is?
[ "A)287", "B)369", "C)125", "D)279", "E)361" ]
C
sciq
sciq_4
Making a specific statement based on a general principle is the definition of what type of reasoning?
[ "inductive", "inference", "transitive", "deductive" ]
D
aqua_train
aqua_train_74054
A batsman makes a score of 76 runs in the 17th inning and thus increases his average by 3. Find his average after 17th inning.
[ "A)36", "B)28", "C)42", "D)45", "E)None of the above" ]
B
aqua_train
aqua_train_33695
How many pieces of 0.40 meteres can be cut from a rod 47.5 meteres long
[ "A)100", "B)118", "C)120", "D)125", "E)70" ]
B
aqua_train
aqua_train_50154
Kurt, a French painter, has 9 jars of paint: 4 jars of yellow paint, 2 jars of red paint, and 3 jars of brown paint. Kurt pours the contents of 3 jars of paint into a new container to make a new color, which he will name according to the following conditions: The paint will be namedBrun Yif it contains 2 jars of brown ...
[ "A)5/42", "B)37/42", "C)1/21", "D)4/9", "E)5/9" ]
B
aqua_train
aqua_train_81663
A reduction of 20% in the price of salt enables a lady to obtain 25 kgs more for Rs.100, find the original price per kg?
[ "A)6", "B)1", "C)5", "D)4", "E)7" ]
B
aqua_train
aqua_train_12741
Two goods trains each 500 m long are running in opposite directions on parallel tracks. Their speeds are 45 km/hr and 45 km/hr respectively. Find the time taken by the slower train to pass the driver of the faster one?
[ "A)40", "B)93", "C)26", "D)23", "E)12" ]
A
aqua_train
aqua_train_36659
A man buys an article for $15. and sells it for $20. Find the gain percent?
[ "A)33 1/3%", "B)50 1/3%", "C)20 1/3%", "D)15%", "E)30%" ]
A
aqua_train
aqua_train_20995
What is the number that should come in the place of question mark? 1050 420 168 67.2 ?
[ "A)29.88", "B)10.752", "C)4.3008", "D)26.88", "E)27.88" ]
D
aqua_train
aqua_train_38471
A train running at the speed of 60 km/hr crosses a pole in 18 seconds. Find the length of the train?
[ "A)150 meter", "B)876 meter", "C)300 meter", "D)719 meter", "E)169 meter" ]
C
aqua_train
aqua_train_84591
The ages of two friends is in the ratio of 6:5.If the sum of their ages is 66. Then after how many years will the ratio become 7:6?
[ "A)5", "B)6", "C)8", "D)9", "E)10" ]
B
aqua_train
aqua_train_3615
Since 2001, the standard serial numbers on a New York state license plate are 3 letters followed by 4 digits. How many different license plates are possible if letters and digits can be repeated?
[ "A)26 × 3 × 10 × 4", "B)26 × 25 × 24 × 10 × 9 × 8 × 7", "C)26³ × 9 × 9 × 9 × 9", "D)26 × 25 × 24 × 10 000", "E)26³ × 10 000" ]
E
ds_train
ds_train_556
During the immunohistochemistry process, what primary factor determines the choice of the secondary antibody?
[ "A. The source species of the primary antibody.\nB. The type of chromogen used.\nC. The tissue type being studied.\nD. The type of counterstain used." ]
A
aqua_train
aqua_train_4725
A and B take part in 100 m race. A runs at 5 kmph. A gives B a start of 8 m and still beats him by 8 seconds. The speed of B is:
[ "A)1.33 kmph", "B)4.14 kmph", "C)2.33 kmph", "D)2.88 kmph", "E)4.44 kmph" ]
B
aqua_train
aqua_train_12632
If a town of 75,000 people is growing at a rate of approx. 1% per year, the population of the town in 5 years will be closest to?
[ "A)a.76000", "B)b.77000", "C)c.78000", "D)d.79000", "E)e.80000" ]
A
aqua_train
aqua_train_61120
For prime numbers x and y, x^3*y^5=z^4. How many positive factors does positive integer z have?
[ "A)One", "B)Two", "C)Three", "D)Four", "E)Five" ]
C
aqua_train
aqua_train_92229
A train 500 m long, running with a speed of 180 km/hr will pass a tree in?
[ "A)17 sec", "B)16 sec", "C)18 sec", "D)10 sec", "E)12 sec" ]
D
aqua_train
aqua_train_78613
A trader mixes 26 kg of rice at Rs. 20 per kg with 30 kg of rice of other variety at Rs. 36 per kg and sells the mixture at Rs. 30 per kg. His profit percent is:
[ "A)No profit", "no loss", "B)5%", "C)8%", "D)10%", "E)12%" ]
B
aqua_train
aqua_train_54556
When an array of pointers is passed through a function, what actually is passed?
[ "A)number of eleme22", "B)number of elements", "C)first element", "D)last element", "E)address of the starting element" ]
E
aqua_train
aqua_train_30674
The product of x and y is a constant. If the value of x is increased by 30%, by what percentage must the value of y be decreased?
[ "A)16%", "B)23.07%", "C)25%", "D)30%", "E)35%" ]
B
aqua_train
aqua_train_93892
A person purchases 90 clocks and sells 40 clocks at a gain of 10% and 50 clocks at a gain of 20%. If he sold all of them at a uniform profit of 15%, then he would have got Rs. 40 less. The cost price of each clock is?
[ "A)26", "B)28", "C)80", "D)26", "E)21" ]
C
aqua_train
aqua_train_96197
A coin is tossed live times. What is the probability that there is at the least one tail?
[ "A)31/32", "B)31/39", "C)31/31", "D)61/32", "E)32/39" ]
A
aqua_train
aqua_train_64263
The greatest possible length which can be used to measure exactly the length 5m ,2m 19cm, 4m 20 cm is?
[ "A)25cm", "B)1cm", "C)56cm", "D)42cm", "E)35cm" ]
B
aqua_train
aqua_train_68471
If pqr = 0 , rst = 1 , and spr = 0, which of the following must be zero?
[ "A)P", "B)Q", "C)R", "D)S", "E)T" ]
A
science_train
science_train_4008
Question: What is the greater flamingo's scientific name? Hints:
[ "Phoenicopterus roseus", "Phoenicopterus andinus" ]
A
aqua_train
aqua_train_12441
Teas worth Rs. 126 per kg and Rs. 135 per kg are mixed with a third variety in the ratio 1 : 1 : 2. If the mixture is worth Rs 154 per Kg , the price of the third variety per Kg will be?
[ "A)Rs. 147.50", "B)Rs. 785.50", "C)Rs. 176.50", "D)Rs. 258.50", "E)None of these" ]
C
aqua_train
aqua_train_19748
If 5 women or 8 girls can do a work in 84 days. In how many days can 10 women and 5 girls can do the same work?
[ "A)42 days", "B)22 days", "C)32 days", "D)82 days", "E)72 days" ]
C
aqua_train
aqua_train_63662
A, B, C and D enter into partnership. A subscribes 1/3 of the capital B 1/4, C 1/5 and D the rest. How much share did A get in a profit of Rs.2460?
[ "A)14028", "B)14029", "C)14027", "D)14000", "E)14298" ]
D
aqua_train
aqua_train_20667
The distance between 2 cities A and B is 330km. A train starts from A at 8 a.m. and travels towards B at 60 km/hr. Another starts from B at 9 a.m. and travels towards A at 75 km/hr. At what time do they meet?
[ "A)9a.m.", "B)10a.m.", "C)10.30a.m.", "D)11a.m.", "E)1p.m." ]
D
sciq
sciq_4
The word fungus comes from the latin word for what?
[ "mold", "vegetable", "spore", "mushroom" ]
D
aqua_train
aqua_train_19771
What will be the remainder when (27^27) + 27 is divided by 28?
[ "A)22", "B)20", "C)24", "D)26", "E)28" ]
D
aqua_train
aqua_train_3112
If d is the standard deviation x, y, and z, what is the standard deviation of x - 5, y - 5, z - 5 ?
[ "A)d", "B)3d", "C)15d", "D)d + 5", "E)d + 15" ]
A
aqua_train
aqua_train_58417
The average salary of all the workers in a workshop is Rs. 8000. The average salary of 7 technicians is Rs. 12000 and the average salary of the rest is Rs. 6000. The total number of workers in the workshop is:
[ "A)23", "B)19", "C)22", "D)20", "E)21" ]
E
aqua_train
aqua_train_39906
A searchlight on top of the watch-tower makes 3 revolutions per minute. What is the probability that a man appearing near the tower will stay in the dark for at least 5 seconds?
[ "A)1/4", "B)1/3", "C)1/2", "D)2/3", "E)3/4" ]
E
aqua_train
aqua_train_20822
The average age of 32 students in a group is 16 years. When teacher’s age is included to it, the average increases by one. What is the teacher’s age in years?
[ "A)cannot be determined", "B)None of these", "C)48", "D)49", "E)50" ]
D
aqua_train
aqua_train_38593
The distance between X&Y is 400km. A person is traveling from X to Y at 60km/hr started at 11AM and another person is traveling from Y to X at 40km/hr and started at same time. Then at what time they meet together.?
[ "A)A)2PM", "B)B)4PM", "C)C)1PM", "D)D)3PM", "E)E)5PM" ]
D
aqua_train
aqua_train_16202
The length of a rectangle is halved, while its breadth is tripled. Watis the % change in area?
[ "A)30%", "B)40%", "C)50percent", "D)60%", "E)70%" ]
C
aqua_train
aqua_train_82814
A tradesman by means of his false balance defrauds to the extent of 20%? in buying goods as well as by selling the goods. What percent does he gain on his outlay?
[ "A)37", "B)27", "C)44", "D)26", "E)27" ]
C
aqua_train
aqua_train_23762
In Cricket game, one player throws two fair, six-sided die at the same time. If the player receives at least a five or a one on either die, that player wins. What is the probability that a player wins after playing the game once?
[ "A)1/3", "B)4/9", "C)5/9", "D)2/3", "E)3/4" ]
C
science_train
science_train_1004
Question: What is the probability that a fruit fly produced by this cross will be homozygous dominant for the eye color gene? Hints:
[ "2/4", "0/4", "4/4", "1/4", "3/4" ]
A
sciq
sciq_4
What are cations simply named after?
[ "the scientist", "the cell structure", "the body part", "the parent element" ]
D
aqua_train
aqua_train_34053
An empty pool being filled with water at a constant rate takes 6hours to fill to 3/5 of its capacity.how much more time will it take to finish filling the pool?
[ "A)5hr 30min", "B)5hr 20min", "C)4hr 48min", "D)3 hr 12min", "E)2hr 40 min" ]
D
aqua_train
aqua_train_652
Solve 8x – 4 = 4x + 11
[ "A)5(1/3)", "B)6(1/3)", "C)7(1/3)", "D)3(3/4)", "E)9(1/3)" ]
D
sciq
sciq_4
What type of cells in the body fluids and tissues of most animals specifically interact with and destroy pathogens?
[ "Microglial cells", "Dendritic cells", "White blood cells", "immune cells" ]
D
sciq
sciq_4
Which body system controls all the others by sending electrical messages?
[ "the localized system", "the specialized system", "the endocrine system", "the nervous system" ]
D
aqua_train
aqua_train_26957
A necklace is made by stringing N individual beads together in the repeating pattern white bead, green bead, red bead, yellow bead, and blue bead. If the necklace design begins with a white bead and ends with a red bead, then N could equal
[ "A)65", "B)68", "C)55", "D)45", "E)35" ]
B
sciq
sciq_4
What makes the halogen group so diverse?
[ "contains alloys", "a single state of matter", "bonds easily", "three different states of matter" ]
D
science_train
science_train_1125
Question: Complete the sentence. In this chemical reaction, hydrogen is a (). Hints:
[ "product", "reactant" ]
A
science_train
science_train_2616
Question: Select the vertebrate. Hints:
[ "redback spider", "curlyhair tarantula", "harbor seal", "honey bee" ]
C
aqua_train
aqua_train_41219
The population of a town has increased from 133575 to 138918. The percent increase in population is :
[ "A)2.5", "B)3", "C)4.5", "D)4", "E)3.5" ]
D
aqua_train
aqua_train_7461
Mary purchased Brand X pens for $2 apiece and brand Y for $1 apiece. If Elena purchased a total of 12 of these pens for $20.00, how many brand X pens did she purchase?
[ "A)8", "B)9", "C)5", "D)4", "E)6" ]
A
science_train
science_train_1537
Question: Select the plant. Hints:
[ "Loons walk", "fly", "and swim.", "Magnolia trees have many leaves." ]
B
aqua_train
aqua_train_92118
Which of the following numbers is not prime?
[ "A)79+52", "B)33+88", "C)166-3", "D)100+67", "E)50-7" ]
B
sciq
sciq_4
What process within cells makes sure that every gamete receives a copy of every chromosome?
[ "genomes", "fission", "mutations", "meiosis" ]
D
sciq
sciq_4
A period is a horizontal row of the what?
[ "cycles table", "phases table", "species table", "periodic table" ]
D
aqua_train
aqua_train_83992
A special municipal payroll tax charges not tax on a payroll less than $200,000 and only 0.2% on a company’s payroll above $200,000. If Belfried Industries paid $200 in this special municipal payroll tax, then they must have had a payroll of?
[ "A)$180,000", "B)$202,000", "C)$220,000", "D)$300,000", "E)$2,200,000" ]
D
aqua_train
aqua_train_16035
Two sides of a triangle have lengths x and w and meet at a right angle. If the perimeter of the triangle is 4x, what is the ratio of x to w ?
[ "A)a) 2 : 3", "B)b) 3 : 4", "C)c) 4 : 3", "D)d) 3 : 2", "E)e) 2 : 1" ]
B
aqua_train
aqua_train_21883
Set A consists of integers -9, 8, 3, 10, and J; Set B consists of integers -2, 5, 0, 7, -6, and K. If R is the median of Set A and W is the mode of set B, and R^W is a factor of 34, what is the value of K if J is negative?
[ "A)-2", "B)K=0", "C)1", "D)2", "E)5" ]
B
sciq
sciq_4
No chemical process on the planet can match the output of what process?
[ "sexual reproduction", "glycolysis", "pollination", "photosynthesis" ]
D
aqua_train
aqua_train_40202
The size of a television screen is given as the length of the screen's diagonal. If the screens were flat, then the area of a square 20-inch screen would be how many square inches greater than the area of a square 18-inch screen?
[ "A)2", "B)4", "C)16", "D)38", "E)40" ]
D
aqua_train
aqua_train_97148
A man gets a simple interest of Rs.400 on a certain principal at the rate of 5% p.a in eight years. Find the compound interest the man will get on twice the principal in two years at the same rate?
[ "A)s.256.27", "B)s.256.29", "C)s.205.00", "D)s.256.22", "E)s.256.25" ]
C
aqua_train
aqua_train_82432
A bag contains five white and four red balls. Two balls are picked at random from the bag. What is the probability that they both are different color?
[ "A)5/5", "B)5/9", "C)5/8", "D)5/1", "E)5/2" ]
B
sciq
sciq_4
What are the "building blocks" of proteins?
[ "hormones", "enzymes", "nucleic acids", "amino acids" ]
D
ds_train
ds_train_1858
In psychoneuroimmunology (PNI), which of the following best describes the relationship between psychological stress and the immune system's function?
[ "A. Psychological stress has no impact on the immune system.\nB. Psychological stress enhances the immune system's function.\nC. Psychological stress can weaken the immune system's function.\nD. Psychological stress only affects the immune system if the individual is already ill." ]
C
aqua_train
aqua_train_41040
If x≠4 and (x^2 - 16)/(2y) = (x - 4)/4, then in terms of y, x = ?
[ "A)(y - 8)/2", "B)(y - 3)/2", "C)y - 3", "D)y - 6", "E)(y + 6)/2" ]
A
aqua_train
aqua_train_50945
In Sam's hanger there are 23 boxes, 16 out of the boxes are filled with toys and the rest are filled with electrical appliances. 8 boxes are for sale, 5 of them are filled with toys. How many boxes with electrical appliances are in Sam's hanger that is not for sale?
[ "A)1.", "B)2", "C)3", "D)4", "E)5" ]
D
aqua_train
aqua_train_70086
A meeting has to be conducted with 6 managers. Find the number of ways in which the managers may be selected from among 9 managers, if there are 2 managers who refuse to attend the meeting together.
[ "A)36", "B)40", "C)42", "D)45", "E)49" ]
E
ds_train
ds_train_75
Consider the diffeomorphism group \( \text{Diff}(M) \) of a smooth manifold \( M \). Which of the following statements accurately describes a key property of the representation theory of \( \text{Diff}(M) \)?
[ "A. The diffeomorphism group \\( \\text{Diff}(M) \\) is always finite-dimensional.\nB. The representations of \\( \\text{Diff}(M) \\) on smooth functions generally decompose into irreducible representations.\nC. The regular representation of \\( \\text{Diff}(M) \\) is always unitary.\nD. The diffeomorphism group \\...
D
aqua_train
aqua_train_59002
If 5^5 × 5^7 = (5^4)^x , then what is the value of x?
[ "A)2", "B)3", "C)4", "D)5", "E)6" ]
B
aqua_train
aqua_train_18948
A, B and C rents a pasture for Rs.870. A put in 12 horses for 8 months, B 16 horses for 9 months and 18 horses for 6 months. How much should C pay?
[ "A)270", "B)199", "C)676", "D)156", "E)122" ]
A
aqua_train
aqua_train_42399
A car travels uphill at 30 km/hr and downhill at 80 km/hr. It goes 100 km uphill and 50 km downhill. Find the average speed of the car?
[ "A)38kmph", "B)33kmph", "C)34kmph", "D)35kmph", "E)36kmph" ]
A
aqua_train
aqua_train_65296
A car travels from point A to point B. The average speed of the car is 60 km/hr and it travels the first half of the trip at a speed of 80 km/hr. What is the speed of the car in the second half of the trip?
[ "A)40", "B)42", "C)45", "D)48", "E)50" ]
D
aqua_train
aqua_train_93120
A businessman earns $24800 in December, thus decreasing his average annual (January to December) earnings by $1500. His average annual earnings would be Source: CMAT Preparation
[ "A)$29000", "B)$33500", "C)$40200", "D)$41300", "E)$42300" ]
D
aqua_train
aqua_train_49042
In August,a cricket team that played 120 matches won 30% of the games it played.After a continuous winning streak,this team raised its average to 52%.How many matches did the team win to attain this average?
[ "A)40", "B)55", "C)68", "D)80", "E)98" ]
B
aqua_train
aqua_train_58488
Three numbers are in the ratio 5 : 6 : 7. The sum of its longest and smallest numbers equals the sum of the third number and 84. Find the third number?
[ "A)A)37", "B)B)85", "C)C)48", "D)D)43", "E)E)84" ]
E
aqua_train
aqua_train_63384
The width of a rectangular hall is ½ of its length. If the area of the hall is 288 sq.m, what is the difference between its length and breadth?
[ "A)8m", "B)10m", "C)12m", "D)15m", "E)17m" ]
C
aqua_train
aqua_train_80385
When divided by 5, x has a remainder of 4 and y has a remainder of 3. Which of the following could be the remainder when x + y is divided by 10?
[ "A)6", "B)7", "C)8", "D)9", "E)0" ]
B
aqua_train
aqua_train_16256
A committee has 5 men and 6 women. What are the number of ways of selecting a group of eight persons?
[ "A)165", "B)185", "C)205", "D)225", "E)245" ]
A
aqua_train
aqua_train_47491
An accurate clock shows 8 o'clock in the morning. Through how many degrees will the hour hand rotate when the clock shows 2 o'clock in the afternoon?
[ "A)180 degrees", "B)190 degrees", "C)200 degrees", "D)280 degrees", "E)None" ]
A
science_train
science_train_4331
Question: Select the chemical formula for this molecule. Hints:
[ "HS", "H3S2", "H2S", "HS2" ]
C
aqua_train
aqua_train_8222
A sum of money is to be distributed among A, B, C, D in the proportion of 5:2:4:3. If C gets Rs. 3000 more than D, what is B's share?
[ "A)A)8239", "B)B)2900", "C)C)6000", "D)D)2393", "E)E)2009" ]
C
aqua_train
aqua_train_63031
In how many ways can 5 boys be allotted four different wadrobe such that none of the wadrobe are empty and all the 5 boys are accommodated?
[ "A)300", "B)290", "C)240", "D)260", "E)280" ]
C
aqua_train
aqua_train_56229
What is the lowest possible common multiple of 2 distinct integers, each greater than 130?
[ "A)131", "B)131*132", "C)131*131", "D)262", "E)132" ]
D
sciq
sciq_4
When does coal release most of its energy?
[ "when forming", "when compressed", "when falling", "when burning" ]
D
aqua_train
aqua_train_88557
Find the sum of all the four digit numbers which are formed by digits 1, 2, 5, 6 A. B. C. D.
[ "A)933510", "B)93324", "C)65120", "D)8400", "E)7400" ]
B
aqua_train
aqua_train_96153
India has a run rate of 3.2 in the first 10 overs. What should be the run rate in remaining 40 overs to win a game of 282 runs?
[ "A)6.25", "B)6.27", "C)6.22", "D)6.21", "E)6.20" ]
A
aqua_train
aqua_train_66998
The average of 1st 3 of 4 numbers is 6 and of the last 3 are 5. If the sum of the first and the last number is 21. What is the last numbers?
[ "A)4", "B)5", "C)6", "D)7", "E)9" ]
E
aqua_train
aqua_train_5309
In a simultaneous throw of 2 dice what is the probability of getting a total of 2?
[ "A)1/4", "B)1/36", "C)2/11", "D)3/13", "E)1/5" ]
B
aqua_train
aqua_train_12216
The total of the ages of Mahesh, Suresh, Ramesh is 129 years. Ten years ago, the ratio of their ages was 2:3:4. What is the present age of Mahesh?
[ "A)32years", "B)54years", "C)42years", "D)35years", "E)30years" ]
B
aqua_train
aqua_train_56695
If the average of 365, 409, 187, 420, 451, and x is 314, then what is x?
[ "A)190", "B)52", "C)232", "D)114", "E)400" ]
B
aqua_train
aqua_train_58012
The difference between the local value and the face value of 9 in the numeral 62975148 is
[ "A)899999", "B)899991", "C)899891", "D)899981", "E)899000" ]
B
aqua_train
aqua_train_86971
The sale price sarees listed for Rs.278 after successive discount is 18% and 19% is?
[ "A)321", "B)276", "C)342", "D)265", "E)198" ]
E
sciq
sciq_4
The anterior muscles of the neck facilitate swallowing and what else?
[ "hearing", "crying", "perspiration", "speech" ]
D
aqua_train
aqua_train_45410
A larger cube has 64 cubic inch as a volume and in the cube there are 64 smaller cubes such that their volume is 1 cubic inch. What is the difference between the surface areas’ sum of the 64 smaller cubes and the surface area of the larger cube, in square inch?
[ "A)54", "B)64", "C)81", "D)288", "E)120" ]
D
aqua_train
aqua_train_93620
A person can swim in still water at 4 km/h. If the speed of water 2 km/h, how many hours will the man take to swim back against the current for 6km?
[ "A)3", "B)5", "C)6", "D)67", "E)7" ]
A