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1. A jogger running at 9 kmph alongside a railway track in 240 metres ahead of the engine of a 120 metres long train running at 45 kmph in the same direction. In how much time will the train pass the jogger?
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By: guest on 01 Jun 2017 05.48 pm
Speed of train relative to jogger = (45 - 9) km/hr = 36 km/hr. = 36 x 5 m/sec 18 = 10 m/sec. Distance to be covered = (240 + 120) m = 360 m. Time taken = 360 sec = 36 sec. 10