document.write( "Question 255308: Pedro can paint a fence 50% faster than Juan and 20% faster than Pilar. Together they can paint a given fence in 4 hr. How long would it take Pedro paint the same fence if he had work alone? \n" ); document.write( "
Algebra.Com's Answer #187655 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Pedro can paint a fence 50% faster than Juan and 20% faster than Pilar. \n" ); document.write( " Together they can paint a given fence in 4 hr. \n" ); document.write( "How long would it take Pedro paint the same fence if he had work alone? \n" ); document.write( ": \n" ); document.write( "let t = time required by Pedro alone \n" ); document.write( "then \n" ); document.write( "1.5t = time required by Juan \n" ); document.write( "and \n" ); document.write( "1.2 = time required by Pilar \n" ); document.write( ": \n" ); document.write( "Let the completed job = 1 \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( "Multiply equation by 6t, results \n" ); document.write( "6(4) + 4(4) + 5(4) = 6t \n" ); document.write( "24 + 16 + 20 = 6t \n" ); document.write( "60 = 6t \n" ); document.write( "t = \n" ); document.write( "t = 10 hrs for Pedro \n" ); document.write( "1.5(10) = 15 hrs for Juan \n" ); document.write( "1.2(10) = 12 hrs for Pilar \n" ); document.write( "; \n" ); document.write( ": \n" ); document.write( "Check solution on a calc: \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |