A train covers a distance of 12 km in 10 min. If it takes 10 sec to pass a telegraph post, then the length of the train is? Choose the correct choice
A) 200 B) 288 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 * 10= 
<gadget id="calculator">20 * 10</gadget>
<output>200</output>
200 m.   200nswer:200
<result>A</result>
A train covers a distance of 12 km in 10 min. If it takes 10 sec to pass a telegraph post, then the length of the train is?