Two joggers, one averaging 7 mph and one averaging 6 mph, start from a designated initial point. The slower jogger arrives at the end of the run 20 minutes after the other jogger. find the distance of the run.
The distance is 14 miles; the first jogger finishes in two hours, while the slower jogger is still 12 miles in. The slower jogger then reaches the end of 14 miles twenty minutes later, because 6mph also means 2 miles per twenty minutes.