From his home in Point Alexander, Dan drove to Belleville at an average speed of 75km/h. From her home in Chalk River, Ashley drove through Point Alexander to Belleville at an average speed of 85km/h. The distance from Chalk River to Point Alexander is 18km. If Dan and Ashley left home at the same time, after what length of time did Ashley overtake Dan?

Question

From his home in Point Alexander, Dan drove to Belleville at an average speed of 75km/h.  From her home in Chalk River, Ashley drove through Point Alexander to Belleville at an average speed of 85km/h.  The distance from Chalk River to Point Alexander is 18km.  If Dan and Ashley left home at the same time, after what length of time did Ashley overtake Dan?

nottim · Answer

Why not oyu draw a diagram? I know it sounds simply, but it really helps.