document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=257826>Question 257826</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Tracy can wallpaper 2 rooms in a new house in 10 hours. Together with her trainee they can wallpaper the 2 rooms in 7 hours. How long would it take the trainee working by herself to do the job? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #189718 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=189718\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> In one hour Tracy can do 1/10 of the job<BR>\n" );
document.write( "x/10+x/y=1<BR>\n" );
document.write( "x=7<BR>\n" );
document.write( "y=23 1/3 hours for the trainee\r<BR>\n" );
document.write( "\n" );
document.write( "check<BR>\n" );
document.write( "x/10+x/70/3=1<BR>\n" );
document.write( "x/10+3x/70=1<BR>\n" );
document.write( "7x/70+3x/70=1<BR>\n" );
document.write( "10x=70<BR>\n" );
document.write( "x=7<BR>\n" );
document.write( "ok<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );