SOLUTION: If John cleans a house in 8 hours and Julie cleans a similar house in 6 hours, how long should it take them to clean another similar house working together?

Question 139272: If John cleans a house in 8 hours and Julie cleans a similar house in 6 hours, how long should it take them to clean another similar house working together?
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
John cleans one whole house in 8 hours, so he can clean of a house in 1 hour. Likewise, Julie can clean of a house in 1 hour.

Together they can clean of a house in 1 hour. Therefore it would take them or three and one-seventh hours to clean one whole house together.

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