A train passes a man standing on the platform. If the train is 240 meters long and its speed is 72 kmph, how much time it took in doing so? Choose one.
A) 16 sec  B) 14 sec  C) 9 ½ sec  D) 8 ½ sec  E) 12 sec
D = 240   S = 72 * 5/18= 
<gadget id="calculator">72 * 5/18</gadget>
<output>20</output>
20 mps   T= 240/20= 
<gadget id="calculator">240/20</gadget>
<output>12</output>
12 sec   Answer: 12 sec
<result>E</result>
A train passes a man standing on the platform. If the train is 240 meters long and its speed is 72 kmph, how much time it took in doing so?