How much time will a train of length 250 m moving at a speed of 72 kmph take to cross another train ...

How much time will a train of length 250 m moving at a speed of 72 kmph take to cross another train of length 300 m, moving at 36 kmph in the same direction?

Quiz

Answer/Solution

55

Steps/Work

The distance to be covered = Sum of their lengths = 250 + 300 = 550 m.
Relative speed = 72 -36 = 36 kmph = 36 * 5/18 = 10 mps.
Time required = d/s = 550/10 = 55 sec.
Answer:A

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How much time will a train of length m moving at a speed of kmph take to cross another train of length m, moving at kmph in the same direction?

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