document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=143150>Question 143150</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A dinner dance is attended by 12 married couples.  In how many ways may a dancing couple be formed if husband and wife\r<BR>\n" );
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document.write( "(A) do not dance together?\r<BR>\n" );
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document.write( "(B) may dance together?\r<BR>\n" );
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document.write( "(C) must dance together? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #104275 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=104275\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A dinner dance is attended by 12 married couples. In how many ways may a dancing couple be formed if husband and wife<BR>\n" );
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document.write( "Total number of mixed-gender pairs is 24C2-2(12C2) = 144<BR>\n" );
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document.write( "(A) do not dance together?<BR>\n" );
document.write( "Ans: 144-12 = 132<BR>\n" );
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document.write( "(B) may dance together?<BR>\n" );
document.write( "Ans: 144<BR>\n" );
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document.write( "(C) must dance together?<BR>\n" );
document.write( "Ans: 12<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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