Mathematics, 14.07.2019 00:00 qawsedrftgyh3487

The san paulo community swimming pool can be filled in 12 hr if water enters through a pipe alone or in 30 hr if water enters through a hose alone. if water is entering through both the pipe and the hose, how long will it take to fill the pool?

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The san paulo community swimming pool can be filled in 12 hr if water enters through a pipe alone or...