# SOLUTION: A 5-horsepower (hp) pump can empty a pool in 5 hours. A smaller, 2-hp pump empties the same pool in 8 hours. The pumps are used together to start emptying the pool. After three hou

Algebra ->  Algebra  -> Rate-of-work-word-problems -> SOLUTION: A 5-horsepower (hp) pump can empty a pool in 5 hours. A smaller, 2-hp pump empties the same pool in 8 hours. The pumps are used together to start emptying the pool. After three hou      Log On

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 Word Problems: Rate of work, PAINTING, Pool Filling Solvers Lessons Answers archive Quiz In Depth

 Question 53079: A 5-horsepower (hp) pump can empty a pool in 5 hours. A smaller, 2-hp pump empties the same pool in 8 hours. The pumps are used together to start emptying the pool. After three hours, the 2-hp pump breaks down. How much longer will it take the larger pump to finish emptying the pool, in hours and minutes?Answer by Paul(988)   (Show Source): You can put this solution on YOUR website!Together: 3 HOurs: --> so there is left: EQUATION: Solve and u get x=0.125 or 0.125(60)=7.5 minutes. Paul.