A train 200 m long is running at a speed of 97kmph At what time will it pass a hare who is runn...........

Quantitative Aptitude (CDS) Problems on trains

A train 200 m long is running at a speed of 97kmph. At what time will it pass a hare who is running at 7kmph in the same direction in which the train is going?

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Explanation:

Speed of the train relative to hare = (97-7) = 90kmph
=90x(5/18) m/sec = 25 m/sec
Time taken by the train to cross the hare
= Time taken by it to cover 200m at 25m/sec
= (200/25)sec = 8sec