document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=63914>Question 63914</A>: <I><SPAN STYLE=\"word-break: break-all;\"> if it takes the faucet 21 minutes to fill the tub, and it takes the drain 28 minutes to empty the tub, how long will it take to fill the tub, if grandma forgets to close the drain while filling it? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #44560 by </B><A HREF=/tutors/aboutme.mpl?userid=tanimachatterjee><B>tanimachatterjee(60)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=tanimachatterjee><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=44560\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">   in 1 min faucet fills 1/21 part of the tub.<BR>\n" );
document.write( "  and in 1 min 1/28 part goes out \r<BR>\n" );
document.write( "\n" );
document.write( "so in 1 min (1/21  -  1/28)part of the tub is filled<BR>\n" );
document.write( "            = 1/84  part<BR>\n" );
document.write( " faucet takes 84 min to fill the tub </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );