SOLUTION: If Sammy can mow a lawn in 3 hours and Laura can mow the same lawn in 4 hours, how long will it take them if they work together?
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Question 584833: If Sammy can mow a lawn in 3 hours and Laura can mow the same lawn in 4 hours, how long will it take them if they work together? Answer by richwmiller(17219) (Show Source):
