Mathematics, 24.06.2021 02:50 brittanysanders

A pool has two inlet pumps A and B. If pump A alone is open, it takes 12 hours to fill the pool with water. If pump B alone is open, it takes 18 hours to fill the pool with water. If the pool needs to be filled in 10 hours, what is the least amount of time (in hours) both pumps need to be open?

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A pool has two inlet pumps A and B. If pump A alone is open, it takes 12 hours to fill the pool with...