document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=419276>Question 419276</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help with this homework:<BR>\n" );
document.write( "In how many ways can a committee of 7 be formed if there are 10 dogs and 15 cats to choose from and the committee must consist of at least one cat? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #293255 by </B><A HREF=/tutors/aboutme.mpl?userid=sudhanshu_kmr><B>sudhanshu_kmr(1152)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=sudhanshu_kmr><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=sudhanshu_kmr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=293255\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "no. of total ways = 25C7   ( there is no restrictions)\r<BR>\n" );
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document.write( "no. of ways when there is no cat, only dogs = 10C7 \r<BR>\n" );
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document.write( "now, we eliminate this value from previous value,\r<BR>\n" );
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document.write( "total no. of ways when at least one cat = 25C7 - 10C7\r<BR>\n" );
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document.write( "= 480700 - 120\r<BR>\n" );
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document.write( "= 480580\r<BR>\n" );
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