A train of length x metres passes a man standing on a platform in 7 seconds.If the speed of the train is 72 km an hour,find x.

Question

A train of length x metres passes a man standing on a platform in 7 seconds.If the speed of the train is 72 km an hour,find x.

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Skylar 2 months 2021-08-12T12:29:43+00:00 1 Answer 1 views 0

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    2021-08-12T12:30:56+00:00

    Step-by-step explanation:

    As train passes a man….

    Distance travelled = length of train = x

    speed = 72km/hr = 72×(5/18) m/sec = 20m/sec

    Time taken = 7sec

    D (x) = speed × time

    x = 20×7

    x= 140m

    So, length of train is 140m.....

    mark it as brainliest.....

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