A train passes a man standing on the platform. If the train is 170 meters long and its speed is 72 kmph, how much time it took in doing so?
Choose the correct choice from the following options.
A) 8 1/6 sec	B) 8 1/9 sec	C) 8 2/2 sec	D) 8 1/2 sec	E) 2 1/2 sec
8 1/2 sec = 170   S = 72 * 5/18= 
<gadget id="calculator">72 * 5/18</gadget>
<output>20</output>
20 mps   T= 170/20 = 8 1/2 sec   Answer: 8 1/2 sec
<result>D</result>
A train passes a man standing on the platform. If the train is 170 meters long and its speed is 72 kmph, how much time it took in doing so?