Melissa 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 Wednesday there were 2 clients who did Plan A and 3 who did Plan B, On Thursday there were 6 clients who did Plan A and 5 who did Plan B. Melissa trained her Wednesday
clients for a total of 6 hours and her Thursday clients for a total of 12 hours. How long does each of the workout plans last?