How many seconds will a 600 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?  Pick one.
A) 36 sec	B) 30 sec	C) 13 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 = 600 * 3/50= 
<gadget id="calculator">600 * 3/50</gadget>
<output>36</output>
36 sec.   36 secnswer:36 sec
<result>A</result>
How many seconds will a 600 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?