A man is running at 9 kmph alongside a railway track in 240 metres ahead of the engine of a
120 metres long train. The train is running at 45 kmph in the same direction. How much time does it take for the train to pass the man?  Choices:	A) 46 sec	B) 36 sec	C) 18 sec	D) 22 sec	E) 30 sec
Distance covered = (240+120)= 
<gadget id="calculator">(240+120)</gadget>
<output>360</output>
360   relative speed= (45-9)= 
<gadget id="calculator">(45-9)</gadget>
<output>36</output>
36 km/hr     36*5/18= 
<gadget id="calculator">  36*5/18</gadget>
<output>10</output>
10 m/s   req time= 360/10= 
<gadget id="calculator">360/10</gadget>
<output>36</output>
36 sec   ANSWER 36 sec
<result>B</result>
A man is running at 9 kmph alongside a railway track in 240 metres ahead of the engine of a
120 metres long train. The train is running at 45 kmph in the same direction. How much time does it take for the train to pass the man?