A jogger running at 9 km/hr along side a railway track is 180 m ahead of the engine of a 120 m long train running at 45 km/hr in the same direction. In how much time will the train pass the jogger? Choose the correct choice from the following answers:
A) 89	B) 20	C) 36	D) 88	E) 30
Speed of train relative to jogger = 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/sec.   Distance to be covered= 180 + 120= 
<gadget id="calculator">180 + 120</gadget>
<output>300</output>
300 m.   Time taken= 300/10= 
<gadget id="calculator">300/10</gadget>
<output>30</output>
30 sec.   Answer: Option 30
<result>E</result>
A jogger running at 9 km/hr along side a railway track is 180 m ahead of the engine of a 120 m long train running at 45 km/hr in the same direction. In how much time will the train pass the jogger?