A train covers a distance of 20 km in 20 min. If it takes 9 sec to pass a telegraph post, then the length of the train is?  Pick
A) 150m B) 200 m C) 120 m D) 225 m E) 160 m
Speed = (20/20 * 60) km/hr   = (60 * 5/18) m/sec   = 50/3 m/sec.   Length of the train   = 50/3 *9= 
<gadget id="calculator">50/3 *9</gadget>
<output>150</output>
150 m.   150mnswer: 150m
<result>A</result>
A train covers a distance of 20 km in 20 min. If it takes 9 sec to pass a telegraph post, then the length of the train is?