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Mathematics, 07.09.2020 03:01 lamondrairving

It takes Bill 8 hours to paint a house. It take Paul 4 hours to paint a house. And it takes Quincy 9 hours to paint a house. How many hours would it take them working together?

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It takes Bill 8 hours to paint a house. It take Paul 4 hours to paint a house. And it takes Quincy 9...
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