document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=619244>Question 619244</A>: <I><SPAN STYLE=\"word-break: break-all;\"> in how many ways can a four letter set of words be formed using the vowels, a,e,i,o,u, assuming that repetitions are allowed?\r<BR>\n" );
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document.write( "n = 5<BR>\n" );
document.write( "r = 4<BR>\n" );
document.write( "nCr = 5!/r!(n-r)!<BR>\n" );
document.write( "5! = 120<BR>\n" );
document.write( "4! = 24<BR>\n" );
document.write( "n-r = 1<BR>\n" );
document.write( "nCr = 120/24*1 = 5\r<BR>\n" );
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document.write( "Is the problem with the 5?<BR>\n" );
document.write( "This can't be right </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #389493 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=389493\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> no, it isn't ... you're overthinking\r<BR>\n" );
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document.write( "\"repetitions are allowed\" ___ four letters, each letter can be any one of 5 choices ___ 5^4 </SPAN>\n" );
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