document.write( "Question 255447: Arthur can do a job in 30 min., Bonnie can do it in 40 min., Claire can do it in 60 min. How long will it take them if they work together? \n" ); document.write( "
Algebra.Com's Answer #187735 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! It has to be less than 30 minutes since Arthur can do it alone in 30 minutes. \n" ); document.write( "and Bonnie in 40 minutes so they should be able to do it in abt 17 minutes. \n" ); document.write( "2x+1.5x+1x=1 hour \n" ); document.write( "4.5x=60\r \n" ); document.write( "\n" ); document.write( "x=60/4.5=600/45=13 minutes 20 seconds \n" ); document.write( " |