A jogger running at 9 kmph alongside a railway track is 240 meters ahead of the engine of a 120-metre long train running at 45 kmph in the same direction. In how much time will the train pass the jogger?
Answer with explanationAnswer: Option D
Speed of train relative to jogger = (45-9) = 36 kmph
===== >>>> 36*(5/18) = 10 m/sec
Distance to cover = 240 + 120 = 360 metres
Time = Distance/Speed
======>>>>> Time = 360/10 = 36 sec