document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=425241>Question 425241</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If sally can paint a house in 4 hours, and John can paint one in 6 hours. How long will it take them to paint the same house together. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #296161 by </B><A HREF=/tutors/aboutme.mpl?userid=htmentor><B>htmentor(1343)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=htmentor><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=htmentor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=296161\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Sally's rate of painting = 1/4 house per hour<BR>\n" );
document.write( "John's rate of painting = 1/6 house per hour<BR>\n" );
document.write( "Working together, their combined rate of painting = 1/4 + 1/6 = 6/24 + 4/24 = 10/24 house per hour<BR>\n" );
document.write( "Inverting gives 24/10 hours per house = 2.4 hours </SPAN>\n" );
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