Amy can clean the house in 7 hours. When she works together with Tom, the job takes

QuestionsCategory: MathAmy can clean the house in 7 hours. When she works together with Tom, the job takes
Lisa Howell asked 7 months ago
Amy can clean the house in 7 hours. When she works together with Tom, the job takes 5 hours. How long would it take Tom, working by himself, to clean the house?

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