A train leaves Orlando at 3:00 PM. A second train leaves the same city in the same direction at 5:00 PM. The second train travels 20 mph faster than the first. If the second train overtakes the first at 10:00 PM, what is the speed of each of the two trains?

Answer 1

Train A went for 2 hours before B started.
B, going 20 mph faster took 5 hours to catch up.
So A was 100 miles ahead.

That means A went 100 miles in 2 hours.

I think you can take it from here, no?