A train covers a distance of 18 km in 10 min. If it takes 9 sec to pass a telegraph post, then the length of the train is?
Choose the correct choice from the following answers.
A) 120m B) 180m C) 270m D) 220m E) 280m
Speed = (18/10 * 60) km/hr = (108 * 5/18) m/sec = 30 m/sec.   Length of the train = 30 * 9= 
<gadget id="calculator">30 * 9</gadget>
<output>270</output>
270 m.   ANSWER:270m
<result>C</result>
A train covers a distance of 18 km in 10 min. If it takes 9 sec to pass a telegraph post, then the length of the train is?