a train of length 200 m is moving with a speed of 72km/h how much time will it take to cross a bridge of 400 m
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30 will be the answer
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30
30 sec
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Total distance= length of train+ length of tunnel
D= 400+200=600 m
$peed= 72km/h= 72×5/18 =20 m/s
Time taken = Distance /speed
Time taken = 600/20=30 sec
D= 400+200=600 m
$peed= 72km/h= 72×5/18 =20 m/s
Time taken = Distance /speed
Time taken = 600/20=30 sec
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