document.write( "Question 627939: If a work is done in 4 days by A and the same work is done in 12 days by B, then how many days will it take to complete the work working A and B together? \n" ); document.write( "
Algebra.Com's Answer #395238 by ewatrrr(24785)\"\" \"About 
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\n" ); document.write( "Hi,
\n" ); document.write( "If a work is done in 4 days by A and the same work is done in 12 days by B,
\n" ); document.write( "then how many days\"highlight%28x%29\" will it take to complete the work working A and B together?
\n" ); document.write( "Question states*** fraction of work done PER day Key
\n" ); document.write( " \"1%2F4+%2B+1%2F12+=+1%2Fx\" |Multiplying thru by 12x so as all denominators = 1
\n" ); document.write( " 3x + x = 12 | Solve for x, days it takes to complete the work together
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