document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=900324>Question 900324</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Twin brothers, Billy and Bobby, can mow their grandparent's lawn together in 92 minutes. Billy could mow the lawn by himself in 25 minutes less time that it would take Bobby. How long would it take Bobby to mow the lawn 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 #545888 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=545888\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1/w+1/r=1/92<BR>\n" );
document.write( "1/(r-25)+1/r=1/92\r<BR>\n" );
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document.write( "r/((r-25)*r)+(r-25)/(r*(r-25))=1/92<BR>\n" );
document.write( "r+r-25/(r*(r-25))=1/92<BR>\n" );
document.write( "(2r-25)/(r^2-25r)=1/92\r<BR>\n" );
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document.write( "r = 11.655 reject since w=r-25<BR>\n" );
document.write( "r = 197.35  Bobby/Robert<BR>\n" );
document.write( "w=r-25<BR>\n" );
document.write( "w=172.35 Billy/William<BR>\n" );
document.write( "check<BR>\n" );
document.write( "1/172.35+1/197.35=1/92<BR>\n" );
document.write( "0.0108693= 0.0108696<BR>\n" );
document.write( "close enough<BR>\n" );
document.write( " </SPAN>\n" );
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