document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1027312>Question 1027312</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A vat of chocolate can be filled by an Intel pipe in 12 hours. An outlet pipe can empty the vat in 15 hours. How long will it take to fill the vat if both pipes are left open?<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 #642515 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=642515\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> every hour (1/12) is filled and (1/15) is emptied.<BR>\n" );
document.write( "(x/12)-(x/15)=1<BR>\n" );
document.write( "multiply everything by 60<BR>\n" );
document.write( "5x-4x=60<BR>\n" );
document.write( "x=60 hours<BR>\n" );
document.write( "That would be filling the vat 5 times and emptying it 4 times. </SPAN>\n" );
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