SOLUTION: If the small pipe fills a pool in 20 minutes and a large pipe fills the same pool within 15 minutes how long will it take if both pipes were used to fill the same pool?
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Question 850515: If the small pipe fills a pool in 20 minutes and a large pipe fills the same pool within 15 minutes how long will it take if both pipes were used to fill the same pool? Answer by josgarithmetic(39617) (Show Source):