Combinatoricsmedium
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How many 2-digit numbers can be formed using {1, 2, 3, 4, 5} with repetition allowed?
How many 2-digit numbers can be formed using {1, 2, 3, 4, 5} with repetition allowed?
How many 2-digit numbers can be formed using {1, 2, 3, 4, 5} with repetition allowed?