[Assistant Superintendent of Jails 2021]

7. Two trains, 130 and 110 metres long, are going in same direction. The faster train takes one minute to pass the other completely. If they are moving in opposite direction, they pass each other completely in 3 seconds. What is the speed of faster train ?

1. 38 m/sec

2. 42 m/sec

3. 46 m/sec

4. 50 m/sec

Correct Answer :

42 m/sec