If repetition is not allowed, how many 4 letter codes can be formed from only 5 letters of the alphabet?

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asked May 18, 2018 158k views

1 Answer

Chad Schultz · Answer 1 · 2018-05-23T02:57:36+0000

Well, If you want 4 letter codes with 5 letters, would be 5 x 4 x 3 x 2 which is 430. (It gets less because If you use one letter you cant use it again.)

If repetition is not allowed, how many 4 letter codes can be formed from only 5 letters of the alphabet?

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