S1 and S2 are two stations which are 195 km apart. A train starts from S1 at 4:00 pm and moves towards S2 at the speed of 65 km/h. Another train starts from S2 at 5:00 pm and moves towards S1 at the speed of 35 km/h. At what time will the two trains meet?
1
6:06 p.m.
2
6:30 p.m.
3
6:15 p.m.
4
6:18 p.m.