150 M long train is moving with a uniform velocity of 45 km per hour. The time taken by the train to cross the bridge of length 850m is?
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Distance travelled by front end of train= 850
Distance travelled by the rear end of the train =850+150=1km
Time taken to cover 45km =1hr
Time for 1km = 1/45hr=80seconds
Distance travelled by the rear end of the train =850+150=1km
Time taken to cover 45km =1hr
Time for 1km = 1/45hr=80seconds
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