document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=365992>Question 365992</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A tank can be filled in 4 days using pipe A alone, and in 3 days using both A and B. How many days will take to pipe B to fill 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 #260818 by </B><A HREF=/tutors/aboutme.mpl?userid=amoresroy><B>amoresroy(361)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=amoresroy><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=amoresroy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=260818\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A tank can be filled in 4 days using pipe A alone, and in 3 days using both A and B. How many days will take to pipe B to fill the tank?\r<BR>\n" );
document.write( "\n" );
document.write( "Let b = number of days it will take pipe B to fill the tank<BR>\n" );
document.write( "   1/b= fraction of tank filled up per day using pipe b<BR>\n" );
document.write( "   1/4= fraction of tank filled up per day using pipe a\r<BR>\n" );
document.write( "\n" );
document.write( "Since a tank can be filled in in 3 days using both A and B<BR>\n" );
document.write( " (1/b +1/4)*3 = 1<BR>\n" );
document.write( "  3/b + 3/4   = 1<BR>\n" );
document.write( "          3/b = 1/4<BR>\n" );
document.write( "            b = 12\r<BR>\n" );
document.write( "\n" );
document.write( "It will take 12 days for pipe B to fill the tank\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );