document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=439419>Question 439419</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A swimming pool holds 540,000 liters of water. THe pool has two drainage pipes. When the pool is completely full, the first pipe alone can empty it in 180 min, and the second pipe alone can empty it in 120 min. When both pipes are draining together, how long does it take them to empty 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 #853290 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39792)</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=853290\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Both drainage pipes open at the same time, drain rate is<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F180%2B1%2F120 ALIGN=MIDDLE  ALT=\"1%2F180%2B1%2F120\"   DISABLED_style= \"max-width:90%; height:auto;\" > pool per minutes.\r<BR>\n" );
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document.write( "Choose denominator 360.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282%2F2%29%281%2F180%29%2B%283%2F3%29%281%2F120%29 ALIGN=MIDDLE  ALT=\"%282%2F2%29%281%2F180%29%2B%283%2F3%29%281%2F120%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2F360%2B3%2F360 ALIGN=MIDDLE  ALT=\"2%2F360%2B3%2F360\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%2F360 ALIGN=MIDDLE  ALT=\"5%2F360\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F72 ALIGN=MIDDLE  ALT=\"1%2F72\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Reciprocal of that will be minutes per pool\r<BR>\n" );
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document.write( "72 minutes to drain the pool. </SPAN>\n" );
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