document.write( "Question 477420: a man can complete a work in 5days another man can do the same work in 8days In how many days can the 2men complete a work? \n" ); document.write( "

Algebra.Com's Answer #327228 by josmiceli(19441) $\"\"$ $\"About$

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Add their rates of working
\n" ); document.write( "Rate of 1st man = ( 1 job ) / ( 5 days )
\n" ); document.write( "Rate of 2nd man = ( 1 job ) / ( 8 days )
\n" ); document.write( "Let $\"x\"$ = the number of days that both men
\n" ); document.write( "working together take to do job
\n" ); document.write( "---------------
\n" ); document.write( " $\"+1%2F5+%2B+1%2F8+=+1%2Fx+\"$
\n" ); document.write( "Multiply both sides by $\"+40x+\"$
\n" ); document.write( " $\"+8x+%2B+5x+=+40+\"$
\n" ); document.write( " $\"+13x+=+40+\"$
\n" ); document.write( " $\"x+=+3.077+\"$
\n" ); document.write( "They can do the job in just over 3 days \n" ); document.write( "

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