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? 

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.
