[PP Sub Inspector 17 Aug 2021] 

5. Two trains are coming towards each other from opposite directions and the front of the two trains are currerntly at the same level. One has a speed of 10 m/s and a length of 120 m and the second has a speed of 15 m/s and a length of 100 m. How much time will it take them to cross each other?

1. 9.1 sec

2. 8.8 sec

3. 8.9 sec

4. 9.0 sec

Correct Answer :

8.8 sec