Two trains are moving in the same direction at 72 kmph and 36 kmph.

Two trains are moving in the same direction at 72 kmph and 36 kmph. The faster train crosses a man in the slower train in 12 seconds. Find the length of the faster train?

Quiz

Answer/Solution

120

Steps/Work

Relative speed = (72 - 36) * 5/18 = 2 * 5 = 10 mps.
Distance covered in 12 sec = 27 * 10 = 270 m.
The length of the faster train = 120 m.
Answer: D

Physics Calculator / Auto Solver

Two trains are moving in the same direction at kmph and kmph. The faster train crosses a man in the slower train in seconds. Find the length of the faster train?

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