document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=920120>Question 920120</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Water from a tank is being used for irrigation while the tank is being filled. The two inlet pipes can fill the tank in 6 h and 12 h, respectively.  The outlet pipe can empty the tank in 24 h. How long would it take to fill the tank with all three pipes open? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #558169 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=558169\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Sum of the rates in unit of TANKS per HOUR.  Water going IN is positive, and going OUT is negative.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F6%2B1%2F12-1%2F24 ALIGN=MIDDLE  ALT=\"1%2F6%2B1%2F12-1%2F24\"   DISABLED_style= \"max-width:90%; height:auto;\" > TANKS per HOUR;<BR>\n" );
document.write( "so you want the reciprocal of that.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=24%2F7 ALIGN=MIDDLE  ALT=\"24%2F7\"   DISABLED_style= \"max-width:90%; height:auto;\" > hours to fill the tank with all three pipes open. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );