document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=517762>Question 517762</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this problem: If there are 13 true/false questions on a test and 6 of them are false. How many different answer keys are possible?\r<BR>\n" );
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document.write( "I am not sure what formula to use for this question. Thank you  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #344897 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=344897\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this problem: If there are 13 true/false questions on a test and 6 of them are false. How many different answer keys are possible? <BR>\n" );
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document.write( "I guess you are saying you don't know which 6 are false so you need<BR>\n" );
document.write( "to produce an answer key for all possible patterns of 6 false in<BR>\n" );
document.write( "13 questions.<BR>\n" );
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document.write( "Ans: # of keys = 13C6 = 1716<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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