Question

A train 280 m long is moving at 60kmph. The time taken by the train to cross a tunnel 220 m long is; ( A ) 35 s
( B ) 20 s
( C ) 25 s
( D ) 30 s

Answer 1

its d
60km/hr=16.6m/s
the length of the train = 280
the length of the tunnel = 220
now total distance = length of train + length of tunnel
= 280+220=500
velocity=distance/time
time=distance/velocity
time=500/16.6
=30.120s
=30(approx)


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