document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1127982>Question 1127982</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have two more sisters than brothers.Each of my sisters has two more sisters than brothers.How many more sisters than brothers does my youngest brother have? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #744471 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52790)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=744471\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "<PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\">\r\n" );
document.write( "1.  It follows from the first two sentences that the child who says it, is a girl.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "2.  So, the girl has two more sisters than brothers:\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "    g -1 = b + 2,    or   g = b + 3,\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "    where \"g\" is the number of girls and \"b\" is the number of boys in the family.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "    Hence, each boy (each brother) has 4 more sisters than brothers.\r\n" );
document.write( "</PRE>\r<BR>\n" );
document.write( "\n" );
document.write( "--------------\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Formally, I just answered the question and solved the problem.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "But I'd like to highlight that this answer does not pre-define a unique number of girls and boys in the family -\r<BR>\n" );
document.write( "\n" );
document.write( "these numbers can vary.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "For example, possible configuration might be  (5 girls,2 boys)  or  (6 girls, 3 boys),\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "but in any case <U>the difference the question asks for is  4</U>.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "---------------\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Also, as an accompanying fact, notice that the number of boys in the family is \"at least 2\", from the condition. \r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "It is not required by the problem, but it is useful to derive it and to keep it in your mind in order for the problem makes sense.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );