Two trains are running at 40 kmph and 20 kmph respectively in the same direction.Fast train completely passes a man sitting in the slower train in 6 seconds.What is the length of the fast train?	Pick one
A) 23 m	B) 23 2/9 m	C) 27m	D) 27 7/9m	E) 33 1/3m
relative speed=20kmph=50/9m/sec   length of the train=50/9*6=33 1/3   ANSW33 1/3mR:33 1/3m
<result>E</result>
Two trains are running at 40 kmph and 20 kmph respectively in the same direction.Fast train completely passes a man sitting in the slower train in 6 seconds.What is the length of the fast train?