document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=897819>Question 897819</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Bob can build a fence in 10 hours, if Frank helps him they can build it in 6 hours. How long would it take Frank to build the fence by himself? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #544327 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=544327\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> rate for Bob (A) alone 10<BR>\n" );
document.write( "rate for A & B together 6\r<BR>\n" );
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document.write( "1/a+1/b=1/x<BR>\n" );
document.write( "1/10+1/b=1/6<BR>\n" );
document.write( "1/b=1/6-1/10<BR>\n" );
document.write( "1/b=10/60-6/60<BR>\n" );
document.write( "1/b=4/60<BR>\n" );
document.write( "1/b=1/15<BR>\n" );
document.write( "b=15<BR>\n" );
document.write( "rate for Frank (B) alone 15<BR>\n" );
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