Mathematics, 17.03.2021 23:40 aliceotter2007

Two large and 1 small pumps can fill a swimming pool in 4 hours. One large and 3 small pumps can also fill the same swimming pool in 4 hours. How many hours will it take 4 large and 4 small pumps to fill the pool

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Two large and 1 small pumps can fill a swimming pool in 4 hours. One large and 3 small pumps can als...