# Aptitude - Problem on Trains

### MCQ

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Q 11.

Two trains A and B are running at 40 kph and 20 kph respectively. If the faster train completely passes a man sitting in the slower train in 5 seconds then what is the length of the faster train.

Options:

•  26 7 m 9
•  27 7 m 9
•  28 7 m 9
•  25 7 m 9
Q 12.

Train A and B are running in opposite direction and approaching a station. If they cross a man standing on the platform in 27 sec and 17 sec respectively and they cross each other in 23 sec. Find the ratio of their speeds.

Options:

• 3:2

• 2:1

• 4:5

• 3:5

Let ratio of their speed be x:y

Length of A = 27x

Length of B = 17y

so, (27x + 17y) / (x + y) = 23

or, x/y = 3/2

Q 13.

Two trains, each 100m long are running in opposite direction. If it takes 8 seconds for them to cross each other and one train is moving twice as fast as the other. Then, what is the speed of the faster train.

Options:

• 58 kph

• 60 kph

• 40 kph

• 50 kph

Q 14.

There are two trains A and B running between city X and Y. Train A starts from city X to city Y and train B starts from city Y to X. After they meet, they reach their destinations after 9 hours and 16 hours respectively. Find the ratio of their speed.

Options:

• 4:3

• 3:5

• 4:1

• 6:7

Q 15.

Find the time taken by a 100 m long train running at 144 kph to cross an electric pole.

Options:

• 2.5 sec

• 3.5 sec

• 4.5 sec

• 5.5 sec

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