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Mathematics, 09.04.2021 01:10 flore7488
pump B alone fills a tank in 9 hours. pump C takes 15 hours to fill the same tank alone. If pump A, B and C are used, the tank fills in 5 hours. How long does it take pump A to fill a 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 pump A,...
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