Middle School Math

[loxxii]

Jim and Mike live 20 meters away from each other. They want to meet up somewhere between their houses. They leave at the same time and Jim walks at 2 m/s and Mike walks at 2.5 m/s. How far from Mike's house will they meet and how long did each of them walk?

I know one way to find this answer, but I cant think of a more simple way to explain it to a remedial math student. Can you help?