document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=206789>Question 206789</A>: <I><SPAN STYLE=\"word-break: break-all;\"> bob fills a pool in 30 min, joe does it in 45 min frank takes 90 minutes - how may minutes will it take them all to fill the pool? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #156318 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=156318\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> they each fill a fraction of the pool based on their own times<BR>\n" );
document.write( "___ the fractions sum to 1 (the whole pool)\r<BR>\n" );
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document.write( "let x=\"combined time\"\r<BR>\n" );
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document.write( "x/30 + x/45 + x/90 = 1\r<BR>\n" );
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document.write( "multiplying by 90 (LCD) ___ 3x + 2x + x = 90 ___ 6x = 90 ___ x = 15 </SPAN>\n" );
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