document.write( "Question 923881: A man and a boy together can complete a work in 24 days. If for the last 6 days the man alone does the work it is completed in 26 days. How long the boy will take to complete the work alone. \n" ); document.write( "
Algebra.Com's Answer #560467 by ankor@dixie-net.com(22740)\"\" \"About 
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A man and a boy together can complete a work in 24 days.
\n" ); document.write( "let m = no. of days for the man to do the job alone
\n" ); document.write( "let b = no. of days for the boy to do it
\n" ); document.write( "let the completed job = 1
\n" ); document.write( "then a shared work equation
\n" ); document.write( "\"24%2Fm\" + \"24%2Fb\" = 1
\n" ); document.write( " If for the last 6 days the man alone does the work, it is completed in 26 days.
\n" ); document.write( "The boy works only 20 days in this scenario
\n" ); document.write( "\"26%2Fm\" + \"20%2Fb\" = 1
\n" ); document.write( "Use elimination here,multiply the 1st equation by 5, the 2nd equation by 6
\n" ); document.write( "Subtract the 1st from the 2nd
\n" ); document.write( "\"156%2Fm\" + \"120%2Fb\" = 6
\n" ); document.write( "\"120%2Fm\" + \"120%2Fb\" = 5
\n" ); document.write( "------------------------------Subtraction eliminates b, find a
\n" ); document.write( "\"36%2Fm\" = 1
\n" ); document.write( "m = 36 days the man working alone
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\n" ); document.write( "then using the 1st original equation
\n" ); document.write( "\"24%2F36\" + \"24%2Fb\" = 1
\n" ); document.write( "reduce the fraction
\n" ); document.write( "\"2%2F3\" + \"24%2Fb\" = 1
\n" ); document.write( "\"24%2Fb\" = 1 - \"2%2F3\"
\n" ); document.write( "\"24%2Fb\" = \"1%2F3\"
\n" ); document.write( "Cross multiply
\n" ); document.write( "b = 72 days, the boy working alone
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\n" ); document.write( "See if that checks out
\n" ); document.write( "\"24%2F36\" + \"24%2F72\" = 1
\n" ); document.write( "reduce fractions
\n" ); document.write( "\"2%2F3\" + \"1%2F3\" = 1
\n" ); document.write( "\"24%2F36\" + \"24%2Fb\" = 1\r
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