How many seconds will a 300 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) 12 sec  B) 30 sec  C) 86 sec  D) 15 sec  E) 18 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 = 300 * 3/50= 
<gadget id="calculator">300 * 3/50</gadget>
<output>18</output>
18 sec.   Answer: 18 sec
<result>E</result>
How many seconds will a 300 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?