document.write( "Question 1149556: if barbara were to paint her room alone, it would take 4 hours. her sister Sarah could do the job in 5 hours. How long would it take them working together? \n" ); document.write( "
Algebra.Com's Answer #770890 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! if barbara were to paint her room alone, it would take 4 hours. her sister Sarah could do the job in 5 hours. How long would it take them working together? \n" ); document.write( "------------- \n" ); document.write( "Probably 20 hours as they would start giggling instead of working. \n" ); document.write( " |