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)![]() ![]() You can put this solution on YOUR website! 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( " \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( " \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( " \n" ); document.write( " \n" ); document.write( "------------------------------Subtraction eliminates b, find a \n" ); document.write( " \n" ); document.write( "m = 36 days the man working alone \n" ); document.write( ": \n" ); document.write( "then using the 1st original equation \n" ); document.write( " \n" ); document.write( "reduce the fraction \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "Cross multiply \n" ); document.write( "b = 72 days, the boy working alone \n" ); document.write( ": \n" ); document.write( "; \n" ); document.write( "See if that checks out \n" ); document.write( " \n" ); document.write( "reduce fractions \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |