A train covers a distance of 18 km in 10 min. If it takes 6 sec to pass a telegraph post, then the length of the train is? Choose the correct answer:
A) 177
B) 168
C) 120
D) 882
E) 180
Speed = (18/10 * 60) km/hr = (108 * 5/18) m/sec = 30 m/sec.   Length of the train = 30 * 6= 
<gadget id="calculator">30 * 6</gadget>
<output>180</output>
180 m.Answer:180
<result>E</result>
A train covers a distance of 18 km in 10 min. If it takes 6 sec to pass a telegraph post, then the length of the train is?