A train departs from Station P at 2 PM and reaches other station Q at 7:00 PM. Another train departs from station Q at 3:00 PM and reaches the station 8:00 PM. At what time the two trains will cross each other?
1
5:00 PM
2
6:00 PM
3
5:15 PM
4
5:30 PM
5
None of these