SOLUTION: it takes maria 1 and 1/2 hours to deliver newspapers every morning. Hal can deliver them in one hour. How fast can they deliver the newspapers if they work together?
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Question 456608: it takes maria 1 and 1/2 hours to deliver newspapers every morning. Hal can deliver them in one hour. How fast can they deliver the newspapers if they work together? Answer by stanbon(75887) (Show Source):
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