Two trains travel in opposite directions at 36 kmph and 45 kmph and a man sitting in slower train passes the faster train in 12 seconds. The length of the faster train is
Choose the correct choice from the following answers:
A) 80 m
B) 270 m
C) 120 m
D) 180 m
E) None
Solution   Relative Speed	= (36 + 45) km/hr   = (81 x 5/18) m/sec   = (45/2) m/sec   Length of the train	= (45 / 2 x 12) m   = 270 m.   Answer 270 m
<result>B</result>
Two trains travel in opposite directions at 36 kmph and 45 kmph and a man sitting in slower train passes the faster train in 12 seconds. The length of the faster train is