A jogger running at 9 kmph alongside a railway track in 180 metres ahead of the engine of a 180 metres long train running at 54 kmph in the same direction. In how much time will the train pass the jogger?

28 sec

28.8 sec

36 sec

36.6 sec

Speed of train relative to jogger = (54 - 9) km/hr = 45 km/hr = (45 x 5/18) m/sec = 25/2 m/sec Distance covered = (180+180) m = 360 m Time taken = (360 * 2 / 25)sec = 28.8 sec.

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