How many seconds will a 200 m long train take to cross a man walking with a speed of 3 km/hr in the direction of the moving train if the speed of the train is 63 km/hr?  Choose the correct choice from the following
A) 26 sec  B) 30 sec  C) 12 sec  D) 19 sec  E) 12 sec
Speed of train relative to man = 63 - 3= 
<gadget id="calculator">63 - 3</gadget>
<output>60</output>
60 km/hr.= 60 * 5/18 = 50/3 m/sec.   Time taken to pass the man = 200 * 3/50= 
<gadget id="calculator">200 * 3/50</gadget>
<output>12</output>
12 sec.   Answer:12 sec
<result>C</result>
How many seconds will a 200 m long train take to cross a man walking with a speed of 3 km/hr in the direction of the moving train if the speed of the train is 63 km/hr?