A train 280 m long, running with a speed of 63 km/hr will pass a tree in?
Answers:  A) 22 sec  B) 16 sec  C) 77 sec  D) 55 sec  E) 17 sec
Speed = 63 * 5/18 = 35/2 m/sec   Time taken = 280 * 2/35= 
<gadget id="calculator">280 * 2/35</gadget>
<output>16</output>
16 sec   Answer:16 sec
<result>B</result>
A train 280 m long, running with a speed of 63 km/hr will pass a tree in?