document.write( "Question 584785: If it takes 3 days for 10 workers to finish building one house, how many days will it take 15 workers to finish building 4 houses.\r
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Algebra.Com's Answer #372888 by scott8148(6628)\"\" \"About 
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3 * 10 = 30 man-days per house\r
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\n" ); document.write( "\n" ); document.write( "4 * 30 = 120 man-days for 4 houses\r
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\n" ); document.write( "\n" ); document.write( "120 / 15 = 8 days
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