• # question_answer A Jogger running at 9 km/hr alongside a railway track is 240 metres ahead of the engine of a 120 metre long train running at 45 km/hr in the same direction. In how much time will the train pass the jogger? A)  15 sec  B)  24 sec C)  30 sec  D)  36 sec

[d] Speed of train relative to jogger $=459=36\,km/hr.$ $=36\times \frac{5}{18}=10m/\sec$ Distance to be covered = 240 + 120 = 360 m. $\therefore$ $Time\,\,taken=\frac{360}{10}=36\,\sec$