document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=962365>Question 962365</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A hose can fill a pool in 12 hours. A drainage pipe can empty the pool in 18 hours.  If the drain pipe is left open while the pool is filling how long will it takes to fill a pool?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #588041 by </B><A HREF=/tutors/aboutme.mpl?userid=ptaylor><B>ptaylor(2198)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ptaylor><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=ptaylor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=588041\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x= amount of time for pool to fill<BR>\n" );
document.write( "with both pipes open the pool fills at the rate of 1/x pool per  hour<BR>\n" );
document.write( "Hose fills at rate of 1/12 pool per hour<BR>\n" );
document.write( "Drainage  pipe empties at rate of 1/18 pool per hour<BR>\n" );
document.write( "sooo<BR>\n" );
document.write( "1/12 - 1/18= 1/x multiply each term by 36x to get rid of fractions<BR>\n" );
document.write( "3x-2x=36<BR>\n" );
document.write( "x=36 hours ---<BR>\n" );
document.write( "CK<BR>\n" );
document.write( "In 36 hours fill pipe fills (1/12)*36= 3 pools<BR>\n" );
document.write( "In 36 hours drain pipe  drains(1/18)*36=2 pools<BR>\n" );
document.write( "3-2=1 full pool:)\r<BR>\n" );
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document.write( "hope this helps--- ptaylor </SPAN>\n" );
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