Question : Two trains, A and B, start from stations X and Y and travel towards Y and X, respectively. After passing each other, they take 4 hours 48 minutes, and 3 hours 20 minutes respectively to reach Y and X. If train A is moving at 45 km/hr, then the speed of train B is:

Option 1: 60 km/hr

Option 2: 64.8 km/hr

Option 3: 54 km/hr

Option 4: 37.5 km/hr

Question : A train starts from a station $P$ for another station $Q$ at 6 p.m. at an average speed of 75 km/h. Another train starts from station $Q$ for station $\mathrm{P}$ at 8 p.m. at an average speed of 105 km/h. If the distance between these two stations is 690 km, then at what time will the two trains meet?

Option 1: 10:30 p.m.

Option 2: 10 p.m.

Option 3: 11 p.m.

Option 4: 11:30 p.m.

Question : $S_1$ and $S_2$ are two stations that are 195 km apart. A train starts from $S_1$ at 4:00 pm and moves towards $S_2$ at the speed of 65 km/hr. Another train starts from $S_2$ at 5:00 pm and moves towards $S_1$ at the speed of 35 km/hr. At what time will the two trains meet?

Option 1: 6:06 pm

Option 2: 6:30 pm

Option 3: 6:15 pm

Option 4: 6:18 pm