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 most appropriate option.
A) 298
B) 220
C) 120
D) 776
E) 991
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
<result>B</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?