Train A and Train B having length 240 m and 360 m respectively are moving towards each other. The speed of train A is 72 km/hr and the speed of train B is 54 km/hr. A person in train B is moving within the train in the opposite direction to the train B with a speed of 18 km/hr. Find the time in which the person in train B will cross Train A.
1
5 s
2
8 s
3
6 s
4
7 s
5
None of these