Question

a train of length x meters passes a man standing on the plateform in 7 seconds.if the speed of the train is 72km /hr, find x​

Answer 1

Step-by-step explanation:

Speed of the train in metres/sec = 72000/3600 = 20

Distance travelled by train to cross the platform = 30 * 20 = 600 = Length of train + Length of platform

Distance travelled by train to cross the man = 18 * 20 = 360 = Length of train

Length of platform = 600 - 360 = 240

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