document.write( "Question 1206762: A and B together can complete a work in 12 days.
\n" ); document.write( "C alone can complete the same work in 20 days. B alone can complete the same work in 18 days.
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Algebra.Com's Answer #844385 by ikleyn(52776) $\"\"$ $\"About$

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\n" ); document.write( "A and B together can complete a work in 12 days.
\n" ); document.write( "C alone can complete the same work in 20 days. B alone can complete the same work in 18 days.
\n" ); document.write( "How many days will it take to do the same work if A and C does it together?
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document.write( "A and B combined rate of work is    of the job per day.\r\n" );
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document.write( "B's individual rate of work is    of the job per day.\r\n" );
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document.write( "Hence, A's individual rate of work is the difference  \r\n" );
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document.write( "     -  =  -  = .\r\n" );
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document.write( "In other words,  A can do    of the job per day, working alone.\r\n" );
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document.write( "Hence, A and C combined rate of work is\r\n" );
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document.write( "     +  =  +  =   of the job per day.\r\n" );
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document.write( "Hence, A and C will complete the job in   =  days = 12  days.    ANSWER\r\n" );
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\n" ); document.write( "\n" ); document.write( "It is a standard and typical joint work problem.\r
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\n" ); document.write( "\n" ); document.write( "There is a wide variety of similar solved joint-work problems with detailed explanations in this site. See the lessons\r
\n" ); document.write( "\n" ); document.write( "    - Using Fractions to solve word problems on joint work \r
\n" ); document.write( "\n" ); document.write( "    - Solving more complicated word problems on joint work \r
\n" ); document.write( "\n" ); document.write( "    - Selected joint-work word problems from the archive \r
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\n" ); document.write( "\n" ); document.write( "Read them and get be trained in solving joint-work problems.\r
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