A train 70 m long, running with a speed of 63 km/hr will pass a tree in?  Pick.
A) 140 sec	B) 160 sec	C) 176 sec	D) 150 sec	E) 170 sec
Speed = 63 * 5/18 = 35/2 m/sec   Time taken = 70 * 2/35 = 140 sec   140 secnswer:140 sec
<result>A</result>
A train 70 m long, running with a speed of 63 km/hr will pass a tree in?