document.write( "Question 823903: 12 men take 27 hours to paint a house. Given that all the men work at the same rate, find how long it will take 9 men to paint the same house. I would really appreciate your time and effort if you could help me with this question. I really don't know a method to solve it. Thanks! \n" ); document.write( "
Algebra.Com's Answer #495915 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
If only 1 of the men, then the work rate is \"%281%2F12%29\" of the group of 12 men. This means, 1 man goes at the rate of \"1%2F%2827%2A12%29\" houses per hour. The question is about the rate for 9 men:\r
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\n" ); document.write( "\n" ); document.write( "Knowing their rates are additive, \"9%281%2F%2827%2A12%29%29=1%2F36\" houses per hour, which using the reciprocal, is 36 hours to paint one house.
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