A train 140 m long, running with a speed of 63 km/hr will pass a tree in?	Choose one.
A) 18 sec
B) 6 sec
C) 8 sec
D) 15 sec
E) 7 sec
Speed = 63 * 5/18 = 35/2 m/sec   Time taken = 140 * 2/35= 
<gadget id="calculator">140 * 2/35</gadget>
<output>8</output>
8 sec   Answer:8 sec
<result>C</result>
A train 140 m long, running with a speed of 63 km/hr will pass a tree in?