document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=35133>Question 35133</A>: <I><SPAN STYLE=\"word-break: break-all;\"> We are working on combinations and permutaions which involve factorials most of the time.\r<BR>\n" );
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document.write( "How many 4 letter combinations can be made from the letters f,g,h,i,j & k. No letters can repeat themselves and the letter do not have to form a word. How do you solve this? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #21753 by </B><A HREF=/tutors/aboutme.mpl?userid=Nate><B>Nate(3500)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Nate><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=21753\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> f,g,h,i,j & k<BR>\n" );
document.write( "When you say no letters can repeat themselves, you do not have to worry there are no two of the same letters!<BR>\n" );
document.write( "P(6,4)=6!/(2!)=360<BR>\n" );
document.write( "Just as  venugopalramana said, that is the many ways, but schools usually put permutations as P(n,r) notation ....<BR>\n" );
document.write( "P(n,r) is the same as nPr </SPAN>\n" );
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