document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=490132>Question 490132</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many ways are there for 15 boys and 15 girls to pair up into 15 different heterosexual couples? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #334008 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=334008\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How many ways are there for 15 boys and 15 girls to pair up into 15 different heterosexual couples?<BR>\n" );
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document.write( "If you have 2 boys (ab) and 2 girls (AB) how many pairings are there?<BR>\n" );
document.write( "aA<BR>\n" );
document.write( "aB<BR>\n" );
document.write( "bA<BR>\n" );
document.write( "bB<BR>\n" );
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document.write( "Each boy can pair with each girl.<BR>\n" );
document.write( "Ans: 2*2 4 pairs<BR>\n" );
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document.write( "Carry that logic to 3 of each or 4 of each or 15 of each.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.  </SPAN>\n" );
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