Section B: Quantitative Aptitude
25 Questions
| Total Attempts: 265
Questions and Answers
- 1.A clock loses 10 minutes each hour. If the clock is set correctly at noon, what time is it when it reads 3 PM?
- A.
3:15 PM
- B.
3:36 PM
- C.
2:54 PM
- D.
3:26 PM
- 2.Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. What is the probability that none of the ants collide?
- A.
0.15
- B.
0.25
- C.
0.4
- D.
0.5
- 3.How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?
- A.
14
- B.
23
- C.
48
- D.
96
- E.
2
- 4.Mr. Black, Mr. Gray, and Mr. White are fighting in a truel. They each get a gun and take turns shooting at each other until only one person is left. Mr. Black, who hits his shot 1/3 of the time, gets to shoot first. Mr. Gray, who hits his shot 2/3 of the time, gets to shoot next, assuming he is still alive. Mr. White, who hits his shot all the time, shoots next, assuming he is also alive. The cycle repeats. If you are Mr. Black, where should you shoot first for the highest chance of survival?
- A.
Shoot Mr White
- B.
Shoot Mr Gray
- C.
Shoot himself
- D.
Shoot at the ground
- E.
None of These
- 5.Find the next number in the sequence: 1, 2, 6, 21, 88, _?_
- A.
225
- B.
245
- C.
325
- D.
445
- E.
255
- 6.Identify the next two numbers in this series: 101, 112, 131, 415, 161, 718, _?_, _?_
- A.
819, 921
- B.
192, 021
- C.
821, 1024
- D.
912, 182
- 7.Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left-hands? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.)
- A.
5,000,000,000
- B.
25,000,000,000
- C.
50,000,000,000
- D.
0
- 8.World's best baseball player comes up with a statement. He says "Baseball bat and ball cost $50. If the bat cost $49 more than the ball, what is the cost of each?
- A.
Ball costs $0.75 and bat costs $49.75
- B.
Ball costs $0.5 and bat costs $49.5
- C.
Ball costs $1 and bat costs $49
- D.
Incorrect statement
- 9.I drive at an average speed of 30 miles per hour to the railroad station each morning and just catch my train. On a particular morning there was a lot of traffic and at the halfway point I found I had averaged only 15 miles per hour. How fast must I drive for the rest of the way to catch my train?
- A.
30 miles per hour
- B.
60 miles per hour
- C.
45 miles per hour
- D.
Impossible to catch the train
- 10.One day, a person went to horse racing area, Instead of counting the number of human and horses, he instead counted 74 heads and 196 legs. Yet he knew the number of humans and horses there. How did he do it, and how many humans and horses are there?
- A.
29 horses, 45 humans
- B.
14 horses, 260 humans
- C.
26 horses, 48 humans
- D.
24 horses, 50 humans
- E.
0 Horses, 0 Humans
- 11.A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train?
- A.
120 m
- B.
180 m
- C.
324 m
- D.
150 m
- E.
100 m
- 12.A train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. If the speed of the train is 54 km/hr, what is the length of the platform?
- A.
120 m
- B.
240 m
- C.
300 m
- D.
200 m
- E.
None of these
- 13.A can lay railway track between two given stations in 16 days and B can do the same job in 12 days. With help of C, they did the job in 4 days only. Then, C alone can do the job in:
- A.
9 and 1/5 days
- B.
9 and 2/5 days
- C.
9 and 3/5 days
- D.
10 days
- E.
9 days
- 14.A alone can do a piece of work in 6 days and B alone in 8 days. A and B undertook to do it for Rs. 3200. With the help of C, they completed the work in 3 days. How much is to be paid to C?
- A.
Rs. 375
- B.
Rs. 400
- C.
Rs. 600
- D.
Rs. 800
- E.
Rs. 875
- 15.Alfred buys an old scooter for Rs. 4700 and spends Rs. 800 on its repairs. If he sells the scooter for Rs. 5800, his gain percent is:
- A.
4.57%
- B.
5.45%
- C.
10%
- D.
12%
- E.
2.37%
- 16.In a certain store, the profit is 320% of the cost. If the cost increases by 25% but the selling price remains constant, approximately what percentage of the selling price is the profit?
- A.
30%
- B.
70%
- C.
100%
- D.
250%
- 17.On selling 17 balls at Rs. 720, there is a loss equal to the cost price of 5 balls. The cost price of a ball is:
- A.
Rs. 45
- B.
Rs. 50
- C.
Rs. 55
- D.
Rs. 60
- E.
Rs. 75
- 18.The cube root of .000216 is:
- A.
0.6
- B.
0.06
- C.
77
- D.
87
- E.
0.7
- 19.The least perfect square, which is divisible by each of 21, 36 and 66 is:
- A.
213444
- B.
214344
- C.
214434
- D.
231444
- 20.A boat running upstream takes 8 hours 48 minutes to cover a certain distance, while it takes 4 hours to cover the same distance running downstream. What is the ratio between the speed of the boat and speed of the water current respectively?
- A.
2:1
- B.
3:2
- C.
8:3
- D.
None of These
- 21.In one hour, a boat goes 11 km/hr along the stream and 5 km/hr against the stream. The speed of the boat in still water (in km/hr) is:
- A.
3 km/hr
- B.
5 km/hr
- C.
8 km/hr
- D.
9 km/hr
- 22.Tea 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. 153 per kg, the price of the third variety per kg will be:
- A.
Rs. 169.50
- B.
Rs. 170
- C.
Rs. 175.50
- D.
Rs. 180
- 23.A can contains a mixture of two liquids A and B is the ratio 7 : 5. When 9 litres of mixture are drawn off and the can is filled with B, the ratio of A and B becomes 7 : 9. How many litres of liquid A was contained by the can initially?
- A.
10
- B.
20
- C.
21
- D.
22
- E.
23
- 24.A tank is filled by three pipes with uniform flow. The first two pipes operating simultaneously fill the tank in the same time during which the tank is filled by the third pipe alone. The second pipe fills the tank 5 hours faster than the first pipe and 4 hours slower than the third pipe. The time required by the first pipe is:
- A.
6 hours
- B.
10 hours
- C.
15 hours
- D.
30 hours
- E.
20 hours
- 25.In a 500 m race, the ratio of the speeds of two contestants A and B is 3 : 4. A has a start of 140 m. Then, A wins by:
- A.
60 m
- B.
40 m
- C.
20 m
- D.
10 m
- E.
30 m
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