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one pump can drain a pool in 12 minutes. when a second pump is also used, the pool only takes 5 minutes to drain. how long would it take the second pump to drain the pool if it were the only pump in use?
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one pump can drain a pool in 12 minutes. when a second pump is also used, the pool only takes 5 minutes to drain. how long would it take the second pump to drain the pool if it were the only pump in use?

User Diego Pacheco
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1 Answer

7 votes
12 minutes since there is only one pump working and one pump takes 12 minutes.
User Lyall
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