Question 432167
If Debbie's going 10km/h, and Ken's going 20 km/h, then together they are traveling at 30 km/h.

25 km/30km/h=5/6 hour, or 50 minutes.  Thus they will meet at 2:50 p.m..
If Ken is leaving Fort Erie at 20 km/h, after 5/6 hour he will have traveled
5/6X20 or l00/6 kilometers from Fort Erie when they meet.