Difference between revisions of "2006 AIME A Problems/Problem 4"

Latest revision as of 11:03, 28 June 2009

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-== Problem ==
+#REDIRECT [[2006 AIME I Problems/Problem 4]]
-Let <math> (a_1,a_2,a_3,\ldots,a_{12}) </math> be a permutation of <math> (1,2,3,\ldots,12) </math> for which
-<center><math> a_1>a_2>a_3>a_4>a_5>a_6 \mathrm{\  and \ } a_6<a_7<a_8<a_9<a_{10}<a_{11}<a_{12}. </math></center>
-An example of such a permutation is <math> (6,5,4,3,2,1,7,8,9,10,11,12). </math> Find the number of such permutations.
-== Solution ==
-== See also ==
-*[[2006 AIME II Problems]]