document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=107977>Question 107977</A>: <I><SPAN STYLE=\"word-break: break-all;\"> ok, here we go.\r<BR>\n" );
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document.write( "John and Harry can paint a house in 10 days. when working alone John can paint the house in 30 days. How many days will it take Harry to paint the house.\r<BR>\n" );
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document.write( "I have no idea how to do this probolem. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #78688 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=78688\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The trick is to invert things at first and turn them right side up at the end.<BR>\n" );
document.write( "John can do 1/30 of the job in 1 day.<BR>\n" );
document.write( "1/30+h=1/10<BR>\n" );
document.write( "h=3/30-1/30<BR>\n" );
document.write( "h=2/30=1/15 Harry can do 1/15 of the job in one day or the entire job in 15 days.<BR>\n" );
document.write( "Ed </SPAN>\n" );
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