Discussion :: Problems on Trains
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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?
Answer : Option C
Explanation :
Speed of train relative to jogger = (45 - 9) km/hr = 36 km/hr.
= \([36 *\frac { 5 } { 18 }]\) | m/sec | |||
= 10 m/sec.
Distance to be covered = (240 + 120) m = 360 m.
Time taken = | \([ \frac { 360 } { 10 }] \) sec | = 36 sec. | ||
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