Subject: mathqa
Question: a jogger running at 9 km / hr along side a railway track is 240 m ahead of the engine of a 140 m long train running at 45 km / hr in the same direction . in how much time will the train pass the jogger ?
Option: 
A: 16 sec
B: 38 sec
C: 17 sec
D: 28 sec
Answer: B