Mathematics, 28.09.2019 22:30 hann647
When three pipes fill a pool, they can finish in 12 hours. two of the pipes can finish in 18 hours if they are working together. how long would it take a third pipe to fill the pool on its own?
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When three pipes fill a pool, they can finish in 12 hours. two of the pipes can finish in 18 hours i...
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