document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=612037>Question 612037</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The full pipe for a tank can fill the tank 45 minutes. The drain pipe can empty the tank in 30 minutes. If both pipes are accidentally left open, how long will it take to empty a full tank? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #385252 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=385252\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The full pipe for a tank can fill the tank 45 minutes. The drain pipe can empty the tank in 30 minutes. If both pipes are accidentally left open, how long will it take to empty a full tank?<BR>\n" );
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document.write( "Each minute, 1/45 of the tank is flowing in & 1/30 is flowing out.<BR>\n" );
document.write( "--> 1/30 - 1/45 net loss per minute<BR>\n" );
document.write( "= 1/90 tank per minute<BR>\n" );
document.write( "= 90 minutes/tank<BR>\n" );
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