document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=862248>Question 862248</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Tracy can wallpaper 5 rooms in a new house in 15 hours. Together with her trainee they can wallpaper the 5 rooms in 10 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 #519576 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39623)</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=519576\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Take care to identify the meaning of \"ONE JOB\".  This job is \"wallpaper five rooms\".  The identification is important.\r<BR>\n" );
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document.write( "Tracy's rate, 1/15 jobs per hour.<BR>\n" );
document.write( "Trainee's rate, 1/h jobs per hour.<BR>\n" );
document.write( "And very carefully, see that Tracy+Trainee, 1/10 JOBS per HOUR.  When you understand these, then you are ready to solve for h, the time for the trainee alone to \"wallpaper five rooms\".\r<BR>\n" );
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document.write( "The combined rate is the sum of their individual rates.<BR>\n" );
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document.write( "Can you solve for h on your own? </SPAN>\n" );
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