document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=607029>Question 607029</A>: <I><SPAN STYLE=\"word-break: break-all;\"> So there are three seats, each one can either be filled by a boy or a girl. How many different combinations are there with repetition? \r<BR>\n" );
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document.write( "I know that there are 4:\r<BR>\n" );
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document.write( "BBB<BR>\n" );
document.write( "BBG<BR>\n" );
document.write( "BGG<BR>\n" );
document.write( "GGG\r<BR>\n" );
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document.write( "However, I don't know the equation to find this... Could you help? Much obliged! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #382338 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=382338\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> There are 2^3 = 8 ways to fill 3 seats with either a boy or a girl. Since order doesn't matter (and something like BBG = BGB and BBG = GBB), we're over-counting and need to divide by 2! = 2*1 = 2 to get\r<BR>\n" );
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document.write( "8/2 = 4\r<BR>\n" );
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