A train is running with the speed of 72 kmph crosses a pole in 25 sec. In how much time it can cross a 160 m long platform?
Let the length of train be ‘x’ meter. => x = 25 x 72 x (5/18) = 500 m Time required to cross the platform = (500 + 160)/[72 x (5/18)] = 660/20 = 33 sec
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