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September 3, 2015

Homework Help: math

Posted by rich on Monday, January 25, 2010 at 7:28am.

If painter A can paint a room in three hours by themselves, and painter B can paint the same room in four hours, and painter C can paint the same room in six hours, how long will it take for all three to paint the room together if they do not get in each others way? Thanks

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