Speed = 63 * 5/18 = 35/2 m/sec
Time taken = 280 * 2/35 = 16 sec
A train 280 m long, running with a speed of 63 km/hr will pass a tree in?
Options:
  * 22 sec
  * 16 second
  * 77 sec
  * 55 sec
  * 17 sec