Answers

2014-05-11T14:45:56+08:00
 i think its 24 ? but im not sure.
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2014-05-16T00:17:00+08:00
In scientific calculator-- n= number of representation Permutation: Seated in a column or row (n!) 4!3!2!1! Circular Permutation: Seated in a circular table (n-1)! (4-1)!
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