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Joe wants to find all the four-letter words that begin and end with the same letter. How many combinations of letters satisfy this property?

Revision as of 16:12, 12 June 2022 by Potato noob101 (talk | contribs) (Created page with "There are <math>26</math> choices for the first letter, <math>26</math> for the second, and <math>26</math> for the third. The last letter is determined by the first letter. T...")
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There are $26$ choices for the first letter, $26$ for the second, and $26$ for the third. The last letter is determined by the first letter. Thus, there are $26^3 = \boxed{17576}$ such combinations.

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