document.write( "Question 140922: sixteen men can completed a work in 15 days. 24 children can do the same in 20 days. in how many days will 8 men and 8 children together completed the same work. \n" ); document.write( "
Algebra.Com's Answer #102576 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! sixteen men can completed a work in 15 days. 24 children can do the same in 20 days. in how many days will 8 men and 8 children together completed the same work. \n" ); document.write( "--------- \n" ); document.write( "16m * 15d = 1 job \n" ); document.write( "16m = (1/15) job/day \n" ); document.write( "8m = (1/30) job/day (this is the rate for 8 men) \n" ); document.write( "------------------------- \n" ); document.write( "24c * 20d = 1 job \n" ); document.write( "24c = (1/20)job/day \n" ); document.write( "8c = (1/60)job/day (this is the rate for 8 children) \n" ); document.write( "--------------------- \n" ); document.write( "Let number of days for 8 men and 8 children be \"x\": \n" ); document.write( "EQUATION: \n" ); document.write( "x(1/30 + 1/60) = 1 job \n" ); document.write( "x(3/60)(job/day) = 1 job \n" ); document.write( "x = 20 days (this is time job would take 8 men and 8 children) \n" ); document.write( "===================== \n" ); document.write( "Cheers \n" ); document.write( "Stan H.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |