document.write( "Question 905102: If A does a job in 16 hours and B does the same job in 12 hours, if B and C do the job together in 4 hours how long would it take C to do the job himeself \n" ); document.write( "

Algebra.Com's Answer #549045 by josmiceli(19441) $\"\"$ $\"About$

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B and C together:
\n" ); document.write( " $\"+1%2F12+%2B+1%2Ft%5Bc%5D+=+1%2F4+\"$
\n" ); document.write( "Multiply both sides by $\"+12t%5Bc%5D+\"$
\n" ); document.write( " $\"+t%5Bc%5D+%2B+12+=+3t%5Bc%5D+\"$
\n" ); document.write( " $\"+2t%5Bc%5D+=+12+\"$
\n" ); document.write( " $\"+t%5Bc%5D+=+6+\"$
\n" ); document.write( "It takes C 6 hrs to do the job alone\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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