Mathematics, 05.04.2021 20:20 andrejr0330jr

Pump B alone fills a tank in 9 hours. Pump C takes 15 hours to fill the same tank alone. If pumps A, B and C are used, the tank fills in 5 hours. How long does it take pump A to fill the the tank alone?

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Pump B alone fills a tank in 9 hours. Pump C takes 15 hours to fill the same tank alone. If pumps A,...

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