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how many three letter "words" can be formed from letters a, k, l, and m if the letters can be used more than once?
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how many three letter "words" can be formed from letters a, k, l, and m if the letters can be used more than once?

User Andrew Richards
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The 3 letter words that can be formed from the a, k,l and m are;

4C3 = 4!/4-3)!
=(4×3×2×1)/1!
= 24


User Ron Cohen
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