A train 200m long has velocity 72km/hr it will take to cross a stationary train 250m long is
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speed of train= 72kmph
=(in m/s) 72×5/18= 20m/s
distance to cover= 200+250
= 450m
time taken= 450÷20
= 22.5sec
=(in m/s) 72×5/18= 20m/s
distance to cover= 200+250
= 450m
time taken= 450÷20
= 22.5sec
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