A train covers a distance of 12 km in 10 min. If it takes 11 sec to pass a telegraph post, then the length of the train is?	Choose the correct choice from the following choices:	A) 177 m	B) 189 m	C) 220 m	D) 178 m	E) 188 m
Speed = (12/10 * 60) km/hr = (72 * 5/18) m/sec   = 20 m/sec.   Length of the train = 20 * 11= 
<gadget id="calculator">20 * 11</gadget>
<output>220</output>
220 m.   Answer: 220 m
<result>C</result>
A train covers a distance of 12 km in 10 min. If it takes 11 sec to pass a telegraph post, then the length of the train is?