A jogger running at 9 km/hr along side a railway track is 280 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 choices:
A) 67 sec
B) 89 sec
C) 36 sec
D) 87 sec
E) 40 sec
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= 280 + 120= 
<gadget id="calculator">280 + 120</gadget>
<output>400</output>
400 m.   Time taken= 400/10= 
<gadget id="calculator">400/10</gadget>
<output>40</output>
40 sec.   Answer: 40 sec
<result>E</result>
A jogger running at 9 km/hr along side a railway track is 280 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?