document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=421874>Question 421874</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If Sally can paint a house in 4 hours, and John can paint the same house in 6 hours, how long will it take for both of them to paint the house together?\r<BR>\n" );
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document.write( "Thank you </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #294513 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><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=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=294513\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let t=time it takes them working together.<BR>\n" );
document.write( "john does 1/6 the job in 1 hr and sally does 1/4.<BR>\n" );
document.write( "1/4 + 1/6 = 1/t<BR>\n" );
document.write( "3/12 + 2/12 = 5/12<BR>\n" );
document.write( "t=12/5 hrs. working together.<BR>\n" );
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document.write( "Ed </SPAN>\n" );
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