They started from different starting points.

So we only ran a whole distance when we first met.

60× 8× (3+7) = 4800 meters

(4800- 100) ÷ 200 = 23.5 (circle)

23.5+ 1 = 24.5 (circle)

Tail disassembly method: 24 laps

There seems to be something wrong with the second question

Or Ray is still here.

Either the bus is not uniform.

If Ray is static.

Then the starting point runs every 12 minutes.

There is a bus at the terminal every four minutes.