Mathematics, 03.06.2021 18:10 ranatashia

Sandra is filling up her swimming pool with a hose. The hose could fill up the swimming pool in 10 hours. However, there is a hole in the lining of the pool and it is losing water. Alone, the hole would empty the pool in 15 hours. How long will it take Sandra to fill the pool?

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Sandra is filling up her swimming pool with a hose. The hose could fill up the swimming pool in 10 h...