A train is 280 meters long is running at a speed of 42km/hr.How much time will it take to pass man standing on platform?
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s=280
v=42*5/18=7/3
t=s/v
=280/[7/3]
280*3/7
=40*3
=120sec
v=42*5/18=7/3
t=s/v
=280/[7/3]
280*3/7
=40*3
=120sec
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