document.write( "Question 889689: One cement mason can lay a cement foundation in 8 hours, while it takes a second 12 hours to do the same task. After working alone for 4 hours, the fist mason quits. How long will it take the second mason to complete the task?\r
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Algebra.Com's Answer #538359 by josgarithmetic(39616)\"\" \"About 
You can put this solution on YOUR website!
Uniform Rates of each mason:
\n" ); document.write( "\"1%2F8\" and \"1%2F12\" in unit of \"foundation%2Fhour\".\r
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\n" ); document.write( "\n" ); document.write( "Basic uniform rate idea is RT=J rate time job.\r
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\n" ); document.write( "\n" ); document.write( "Let h = time in hours for the second mason to finish after the first mason stops. The two masons do not work simultaneously.\r
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\n" ); document.write( "\n" ); document.write( "\"highlight_green%28%281%2F8%294%2B%281%2F12%29h=1%29\".
\n" ); document.write( "Solve for h.
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