With spraying equipment, Lizette Foley can paint the woodwork in a small house in 8 hr
Chapter 7, Problem 67(choose chapter or problem)
With spraying equipment, Lizette Foley can paint the woodwork in a small house in 8 hr. Seyed Sadati needs 14 hr to complete the same job painting by hand. If Lizette and Seyed work together, how long will it take them to paint the woodwork?
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