if sally can paint a house in 4 hours, a

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Due on Mar. 16, 2009
Asked on Mar 14, 2009 at 5:20:08PM

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if sally can paint a house in 4 hours, and john can paint the same house in 6 hours, how long will it take both of them to paint the house together?

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Posted on Mar 14, 2009 at 5:22:52PM

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Preview: ... e whole job), where N is the number of hours. so N hours = 1/ (5/12)<br>N = (12/5) ...

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Posted on Mar 14, 2009 at 5:24:42PM

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Preview: ... 6 hours, how long will it take both of t ...

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Posted on Mar 14, 2009 at 6:22:45PM

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Preview: ... d John can paint 1/6 of the house.<br>So, in hour ...

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