document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=813210>Question 813210</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A painter finished a house in 8 hours, assistant takes 10 hours to finish same job, how long would it take them to complete this job if they worked together ? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #489532 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=489532\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Their rates are added simply if they work simultaneously (or at least, that is the idea to use).\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "The painter:  1/8 jobs per hour<BR>\n" );
document.write( "The assistant:  1/10 jobs per hour<BR>\n" );
document.write( "Both together:  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F8%2B1%2F10=5%2F40%2B4%2F40=highlight%289%2F40%29 ALIGN=MIDDLE  ALT=\"1%2F8%2B1%2F10=5%2F40%2B4%2F40=highlight%289%2F40%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "That is NINE jobs per FORTY hours.  You want the time h in hours for both people to do 1 job.  \r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28%289%2F40%29%2Ah=1%29 ALIGN=MIDDLE  ALT=\"highlight%28%289%2F40%29%2Ah=1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h=40%2F9=highlight%284%264%2F9%29 ALIGN=MIDDLE  ALT=\"h=40%2F9=highlight%284%264%2F9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > hours </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );