document.write( "Question 1008205: Bob can paint a room in 3 hours working alone. It takes Barbara 5 hours to paint the same room. How long would it take them to paint the room together? \n" ); document.write( "
Algebra.Com's Answer #623972 by ikleyn(52788)\"\" \"About 
You can put this solution on YOUR website!
.
\n" ); document.write( "\"1%2F3\" + \"1%2F5\" = \"5%2F15+%2B+3%2F15\" = \"8%2F15\".\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "It will take \"15%2F8\" hour for Bob and Barbara to paint the room working together.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "For details see the lesson Using fractions to solve word problems on joint work in this site, \r
\n" ); document.write( "\n" ); document.write( "where you will find a bunch of typical solved problems on joint work.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );