A train 500 m long, running with a speed of 180 km/hr will pass a tree in?	Choose one:	A) 17 sec	B) 16 sec	C) 18 sec	D) 10 sec	E) 12 sec
Speed = 180 * 5/18= 
<gadget id="calculator">180 * 5/18</gadget>
<output>50</output>
50 m/sec   Time taken= 500 * 1/50= 
<gadget id="calculator">500 * 1/50</gadget>
<output>10</output>
10 sec   Answer: 10 sec
<result>D</result>
A train 500 m long, running with a speed of 180 km/hr will pass a tree in?