document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1167472>Question 1167472</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A group of eleven seniors, nine juniors, five sophomores, and four freshmen must select a committee of four. How many committees are possible if the committee must contain the following?<BR>\n" );
document.write( "(a) one person from each class\r<BR>\n" );
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document.write( "(b) any mixture of the classes<BR>\n" );
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document.write( "(c) exactly two seniors<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #792231 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=792231\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a. 1 person from each class is 11*9*5*4 ways=1980 ways\r<BR>\n" );
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document.write( "b. this is 29C4 or 23,751 ways\r<BR>\n" );
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document.write( "c. exactly two seniors means 11C2*18C2, the latter being everyone else<BR>\n" );
document.write( "this is 55*153=8415 ways </SPAN>\n" );
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