A train 225m long, crosses a man standing on a platform, in 10 sec find the speed of the train How long will take to pass a platform 405 m long?
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Step-by-step explanation:
Train crosses the man standing on platform=10 seconds,
So speed of the train =225/10= 22.5 m/sec
length of the train = 225 metres
Time taken by the train to cross a platform 405 metre long
=length of train + platform / speed
=(225+405)20=630/22.5
Time taken by train = 28 seconds
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