SOLUTION: If Al can paint a room in 20 hours, and Bill can paint a room in 30 hours, how long will it take to paint a room if they work together?
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Question 843332: If Al can paint a room in 20 hours, and Bill can paint a room in 30 hours, how long will it take to paint a room if they work together? Answer by richwmiller(17219) (Show Source):
