Salma the trainer has two solo workout plans that she offers her clients: Plan A and Plan B. Each client does either one or the other (not both). On Monday there were 3 clients who did Plan A and 5 who did Plan B. On Tuesday there were 6 clients who did Plan A and 2 who did Plan B. Salma trained her Monday clients for a total of 10 hours and her Tuesday clients for a total of 10 hours. How long does each of the workout plans last?