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Questions  

A 150m long train is moving with a uniform velocity of 45km/h.  The time taken by the train to cross a bridge of length 850m is

a
56 sec
b
68 sec
c
80 sec
d
93 sec

detailed solution

Correct option is C

time taken=total length of train and bridgevelocity of trainvelocity of train =45×518m/sec                (conversion) time taken  =  150+85045×518  =     80 sec

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