document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=374925>Question 374925</A>: <I><SPAN STYLE=\"word-break: break-all;\"> It takes John 20 hours to paint a building. It takes Sam 15 hours to paint the same building. How long will it take for them to paint the building if they work together, with Sam starting one hour later than John? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #266629 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=266629\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> John does 1/20 of the job in the 1st hr.<BR>\n" );
document.write( "x/20 + x/15 = 19/20 John has already done 1/20 of the job.<BR>\n" );
document.write( "3x+4x=57 Multiply each side by 60.<BR>\n" );
document.write( "7x=57<BR>\n" );
document.write( "x=57/7 hrs together after John worked alone for one hr.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Ed </SPAN>\n" );
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