A jogger running at 9 kmph alongside a railway track is 240 metres ahead of the engine of a 120 metre long train running at 45 kmph in the same direction. In how much time will the train pass the jogger ?
Choose the most appropriate option.
A) 30 seconds
B) 32 seconds
C) 34 seconds
D) 36 seconds
E) 38 seconds
Explanation:   Speed of train relative to jogger = (45-9)= 
<gadget id="calculator">(45-9)</gadget>
<output>36</output>
36 kmph= 36*(5/18)= 
<gadget id="calculator">36*(5/18)</gadget>
<output>10</output>
10 m/sec   36 secondsistance to cover= 240 + 120= 
<gadget id="calculator">240 + 120</gadget>
<output>360</output>
360 metres   Time= 36 secondsistance/Speed   So,   Time=360/10= 
<gadget id="calculator">360/10</gadget>
<output>36</output>
36 Seconds   ANSWER IS 36 seconds
<result>D</result>
A jogger running at 9 kmph alongside a railway track is 240 metres ahead of the engine of a 120 metre long train running at 45 kmph in the same direction. In how much time will the train pass the jogger ?