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03-22-2008, 12:46 AM
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| Help on math "work" problem? Art can do a job in thirty minutes, bob can do it in forty minutes, and Carl can do it in one hour. How long will it take them if they work together? I got an answer (13 and one third minutes) but I'm not sure if that is correct. Could someone show how to work out the problem so I can see if i did it right?      |
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