Question

Two trains are running at 40 km/hr and 20 km/hr respectively in the same direction. Fast train completely passes a man sitting in the slower train in 5 seconds. What is the length of the fast train?
A.23 m
B.23

2

m



23
9

m
C. 27

7

m



27
9

m
D.29 m

Answer 1

the and of this question is 27

Answer 2

I did not understand the options