A train 280 m long, running with a speed of 63 km/hr will pass a tree in?
Choose the correct option:	A) 21	B) 16	C) 18	D) 12	E) 112
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
<result>B</result>
A train 280 m long, running with a speed of 63 km/hr will pass a tree in?