Mathematics, 02.12.2019 10:31 avery4428

17. an empty swimming pool can be filled in 18 hours. if the pool is full, it takes 72 hours to drain it. how long will it take to fill the empty pool with the drain left
open?

17. an empty swimming pool can be filled in 18 hours. if the pool is full, it takes 72 hours to drai

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17. an empty swimming pool can be filled in 18 hours. if the pool is full, it takes 72 hours to drain it. how long will it take to fill the empty pool with the drain leftopen?

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Another question on Mathematics

17. an empty swimming pool can be filled in 18 hours. if the pool is full, it takes 72 hours to drain it. how long will it take to fill the empty pool with the drain left
open?