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Mathematics, 29.01.2020 07:47 doritasanchez

Achildren's inflatable pool takes 22 minutes to fill with an electric air pump. it takes 50 minutes to let the air out of the pool. if the pools valve is accidentally left open, how long will it take to fill the pool?

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Achildren's inflatable pool takes 22 minutes to fill with an electric air pump. it takes 50 minutes...
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