Two trains are moving in the same direction at a speed of 54 km/h and 92 km/h, their lengths are 400 m and 360 m respectively. What is the time taken (in seconds) by faster train to cross the slower train?

Two trains are moving in the same direction at a speed of 54 km/h and

1.	Two trains are moving in the same direction at a speed of 54 km/h and 92 km/h, their lengths are 400 m and 360 m respectively. What is the time taken (in seconds) by faster train to cross the slower train?
A.	60
B.	72
C.	81
D.	90
Answer» C. 81