A train passes a man standing on the platform. If the train is 150 meters long and its speed is 72 kmph, how much time it took in doing so?  Choices
A) 6 Â½ sec	B) 6 Â½ sec	C) 9 Â½ sec	D) 8 Â½ sec	E) 7 Â½ sec
7 Â½ sec   7 Â½ sec   S = 72 * 5/18= 
<gadget id="calculator">72 * 5/18</gadget>
<output>20</output>
20 mps   T= 150/20 = 7 Â½ sec
<result>E</result>
A train passes a man standing on the platform. If the train is 150 meters long and its speed is 72 kmph, how much time it took in doing so?