document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1163884>Question 1163884</A>: <I><SPAN STYLE=\"word-break: break-all;\">  An inlet pipe can fill a tank in 3 hours. An outlet pipe<BR>\n" );
document.write( "can empty the tank in 6 hours. If the tank is empty and<BR>\n" );
document.write( "both pipes are opened, how many hours will it take to fill<BR>\n" );
document.write( "the tank? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #788121 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=788121\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  An inlet pipe can fill a tank in 3 hours. An outlet pipe<BR>\n" );
document.write( "can empty the tank in 6 hours. If the tank is empty and<BR>\n" );
document.write( "both pipes are opened, how many hours will it take to fill<BR>\n" );
document.write( "the tank?<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "Each hour, 1/3 of the tank flows in and 1/6 flows out.<BR>\n" );
document.write( "Increase per hour = 1/3 - 1/6 = 1/6 of the tank.<BR>\n" );
document.write( "---> 6 hours to fill it. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );