A train 210 m long, running with a speed of 63 km/hr will pass a tree in?  Choose the most appropriate option:	A) 22 sec	B) 16 sec	C) 17 sec	D) 18 sec	E) 12 sec
Speed = 63 * 5/18 = 35/2 m/sec   Time taken = 210 * 2/35 = 18 sec   Answer:18 sec
<result>D</result>
A train 210 m long, running with a speed of 63 km/hr will pass a tree in?