document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=752337>Question 752337</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A swimming pool can be filled by one pipe in 4 hours and emptied by another 	in 5 hours. The water is allowed to run for 2 hours with both pipes open and 	then the outlet is closed. How long will it take the tank to fill </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #457687 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</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=457687\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Filler, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2B%281%2F4%29 ALIGN=MIDDLE  ALT=\"%2B%281%2F4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > job per hour.\r<BR>\n" );
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document.write( "Emptier, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-%281%2F5%29 ALIGN=MIDDLE  ALT=\"-%281%2F5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > job per hour.\r<BR>\n" );
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document.write( "Both pipes open at the same time, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F4-1%2F5 ALIGN=MIDDLE  ALT=\"1%2F4-1%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" > job per hour = <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%2F20-4%2F20=1%2F20 ALIGN=MIDDLE  ALT=\"5%2F20-4%2F20=1%2F20\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2B%281%2F20%29 ALIGN=MIDDLE  ALT=\"%2B%281%2F20%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > job per hour.\r<BR>\n" );
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document.write( "Is this enough to continue solving?  Rate * Time = Job. </SPAN>\n" );
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