Question
9 men working 10 hours a day can finish building a boat in 12 days. How long would it take 12 men to finish building the same boat if they work the same number of hours a day?
3 m

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9 men working 10 hours a day can finish building a boat in 12 days. How long would it take 12 men to finish building the same boat if they work the same number of hours a day?