32.
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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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A.
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3.6 sec
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B.
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18 sec
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C.
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36 sec
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D.
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72 sec
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Answer: Option C
Explanation:
Speed of train relative to jogger = (45 - 9) km/hr = 36 km/hr.
= 10 m/sec.
Distance to be covered = (240 + 120) m = 360 m.
Time taken =
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360
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sec
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= 36 sec.
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10
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