Trains, boats & streams aptitude

Question 1

A 240 m long train running at 54 km/h passes a signal pole in:

Accepted Answer

16 seconds

Answer

12 seconds

Answer

18 seconds

Answer

20 seconds

Question 2

A 180 m long train running at 72 km/h crosses a 220 m long platform. How long does it take?

Accepted Answer

20 seconds

Answer

9 seconds

Answer

11 seconds

Answer

22 seconds

Question 3

Two trains 150 m and 100 m long run on parallel tracks in opposite directions at 60 km/h and 30 km/h. How long do they take to cross each other?

Accepted Answer

10 seconds

Answer

15 seconds

Answer

30 seconds

Answer

12 seconds

Question 4

Two trains 200 m and 160 m long run in the same direction at 80 km/h and 62 km/h. How long does the faster train take to completely pass the slower one?

Accepted Answer

72 seconds

Answer

20 seconds

Answer

36 seconds

Answer

48 seconds

Question 5

A 150 m long train passes a man running at 6 km/h in the same direction in 18 seconds. What is the speed of the train?

Accepted Answer

36 km/h

Answer

30 km/h

Answer

42 km/h

Answer

24 km/h

Question 6

A boat's speed in still water is 15 km/h and the stream flows at 3 km/h. How long will it take to go 36 km downstream and come back?

Accepted Answer

5 hours

Answer

4.8 hours

Answer

4 hours

Answer

5.5 hours

Question 7

A boat goes 30 km downstream in 2 hours and 18 km upstream in 2 hours. What is the speed of the stream?

Accepted Answer

3 km/h

Answer

6 km/h

Answer

12 km/h

Answer

4 km/h

Question 8

A man rows to a place 48 km away and back in 14 hours. He can row 4 km downstream in the same time as 3 km upstream. What is the speed of the stream?

Accepted Answer

1 km/h

Answer

2 km/h

Answer

1.5 km/h

Answer

0.5 km/h