document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=30585>Question 30585</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A tank is supplied by two pipes A and B, and emptied by a third pipe C.  If the tank is empty and all pipes are opened, the tank can be filled in 20 hrs.  If the tank is full and A and C are opened, the tank can be emptied in 2 hrs. If A supplies 50 liters per minute more than B, find the capacity of the tank in liters and the rate of each pipe in liters per minute.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #17306 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley71><B>checkley71(8403)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley71><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=17306\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A+B-C=20<BR>\n" );
document.write( "A-C=2<BR>\n" );
document.write( "A=B+50\r<BR>\n" );
document.write( "\n" );
document.write( "   A+B-C=20<BR>\n" );
document.write( " -(A  -C= 2)<BR>\n" );
document.write( "   --------<BR>\n" );
document.write( "     B  =18\r<BR>\n" );
document.write( "\n" );
document.write( "   A=18+50<BR>\n" );
document.write( "   A=68\r<BR>\n" );
document.write( "\n" );
document.write( "   68-C=2<BR>\n" );
document.write( "   -C=-66<BR>\n" );
document.write( "    C=66\r<BR>\n" );
document.write( "\n" );
document.write( "PROOF 68+18-66=20 OR 86-66=20 OR 66=66<BR>\n" );
document.write( "      68-66=2 OR 2=2<BR>\n" );
document.write( "      68=18+50 OR 68=68<BR>\n" );
document.write( "        </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );