Subject: 4 travellers problem
Date: Tue, 14 May 1996 16:13:02
From: Ken Ross
It's a nice problem. I solved it using coordinate geometry. That approach has the benefit that one can construct the time of the meeting of persons 3 and 4 in terms of the meeting times of the other people. I also wanted to mention that the problem specification mentions that the speeds are all different, but the solution still works if several of them are walking at the same speed.