Two hikers start out on the Kilimanjaro Trail at the same time and walk in the same direction. If one hiker averages 2 kilometers per hour and the other averages 2.6 kilometers per hour, in how many hours will they be 5 kilometers apart?
after t hours, they will be (2.6-2.0)t km apart.
So, find t such that
0.6t = 5