document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=416263>Question 416263</A>: <I><SPAN STYLE=\"word-break: break-all;\"> At a track meet 6 runners out of 20 must be chosen and their position are assigned for the frist heat of the race.  In how many ways can this be done?  I got 38760, but the teachers says it is wrong.  I don't understand how to solve it.   </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #291663 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=291663\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> you solved it as a combination problem 20C6\r<BR>\n" );
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document.write( "but it is a permutation problem (20P6) because the assigning of positions means that order counts\r<BR>\n" );
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document.write( "any group of 6 runners can have the positions assigned in 6! ways </SPAN>\n" );
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