Almaza S.

asked • 09/24/17

What is the number of three-letter combinations that can be made using the letters OFF?

Would it be 6.
Please help, and thank you!

Kenneth S.

Usually, this question would be written using the word Permutation, rather than Combination.
The three 'different combinations' cited by Andrew aren't different combinations--they're different orders, and that's showing permutations.
3C3 = 1.


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