working alone, Angie can process the payroll in 5 hours while Pam can finish the job in 6 hours. How long would it take Pam and Angie to do the job together

One pipe can fill a tank three times as fast as another. When both pipes are used, it takes 1.5 hours to fill the tank. How long does it take each pipe alone?

Apr 29th, 2015

Pete can do a job in 4 hours less than Sam can. Working together, they can complete the job in 16 hours. How long would it take each working alone? Round your answer to the nearest thenth of an hour