SOLUTION: one hose can fill a goldfish pond in 45 minutes and two hoses can fill the same pond in 20 minutes. find how long it takes for the second hose alone to the pond.
Question 104330: one hose can fill a goldfish pond in 45 minutes and two hoses can fill the same pond in 20 minutes. find how long it takes for the second hose alone to the pond. Answer by Gmoney(2) (Show Source):