Two trains are running at 40 kmph and 20 kmph respectively in the same direction.Fast train ...

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?

Quiz

Answer/Solution

33 1/3m

Steps/Work

relative speed=20kmph=50/9m/sec
length of the train=50/9*6=33 1/3
ANSWER:E