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April 18, 2015

April 18, 2015

Posted by **Rory** on Wednesday, April 13, 2011 at 9:19pm.

- Math -
**MathMate**, Wednesday, April 13, 2011 at 9:27pmThe 3-letter permutation would be obtained by choosing the first letter from 5 choices, the second from 4 choices, and the third from 3 choices.

By the rule of multiplication, the number of permutations is thus 5*4*3.

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