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Mathematics, 21.11.2020 18:40 willveloz4

Each good worker can paint my new house alone in 12 hours. Each bad worker can paint my house alone in 36 hours. I need my house painted in 3 hours. If I can only find 3 good workers, how many bad workers must I also find in order to have my house painted on time? Pls give explanation

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Each good worker can paint my new house alone in 12 hours. Each bad worker can paint my house alone...
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