document.write( "Question 1176266: A cement mason can construct a retaining wall in 12 h. A second mason requires 10 h to do the same job. After working alone for 6 h, the first mason quits. How long will it take the second mason to complete the wall? \n" ); document.write( "
Algebra.Com's Answer #802767 by ikleyn(52781)\"\" \"About 
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\n" ); document.write( "A cement mason can construct a retaining wall in 12 h.
\n" ); document.write( "A second mason requires 10 h to do the same job.
\n" ); document.write( "After working alone for 6 h, the first mason quits.
\n" ); document.write( "How long will it take the second mason to complete the wall?
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document.write( "After working 6 hours, the first mason, completed one half of the job;  \r\n" );
document.write( "another half remained to be completed by the second mason.\r\n" );
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document.write( "So, the second mason needs  \"%28%281%2F2%29%29%2F%28%281%2F10%29%29%29\" = \"10%2F2\" = 5 hours to complete that half \r\n" );
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document.write( "and the entire job / (the entire wall).    ANSWER\r\n" );
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