document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=301609>Question 301609</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Barney can build a barn in 15 hours. david can build a barn in 10 hours. How long will it take for the barn to be built if they work together? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #216261 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=216261\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x/10+x/15=1<BR>\n" );
document.write( "multiply by 30 not 150<BR>\n" );
document.write( "3x+2x=30<BR>\n" );
document.write( "5x=30<BR>\n" );
document.write( "x=6<BR>\n" );
document.write( "together they can do it in 6 hours<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );