A train covers a distance of 36km in 12 min. If it takes 10 sec to pass a telegraph post, then the length of the train is?	Choose the most appropriate option
A) 300 m
B) 1000 m
C) 120 m
D) 200 m
E) 500 m
Speed = (36/12 * 60) km/hr   = (180 * 5/18) m/sec   = 50 m/sec.   Length of the train   = 50 * 10= 
<gadget id="calculator">50 * 10</gadget>
<output>500</output>
500 m.   Answer: 500 m
<result>E</result>
A train covers a distance of 36km in 12 min. If it takes 10 sec to pass a telegraph post, then the length of the train is?