Question

The Greek alphabet contains 24 letters. How many fraternity names with Greek letters can be formed if each fraternity name contains 2 letters and repetition of letters is permitted?
48
552
576

Answer 1

A fraternity name formed by two letters would have 24 choices for the first letter, and 24 choices for the second, therefore 24*24=576 is the correct answer.

Answer 2

The answer is 24 *24 or 576