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
\n" ); document.write( "\n" ); document.write( "Thank you very much!
\n" ); document.write( "

Algebra.Com's Answer #538360 by JulietG(1812)\"\" \"About 
You can put this solution on YOUR website!
The first mason has completed \"4%2F8\" of the task. It's half done. The second mason has to complete the second half -- it takes him 12 hours for the full task, so half of that for half a task. 12/2 = 6 more hours. \n" ); document.write( "
\n" );