Question: Question 22 Next Question 22 How many three-letter words can be made from 9 letters FGHIJKLMN if repetition of letters (a) is allowed? Your answer

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Question 22 How many three-letter "words" can be made from 9 letters "FGHIJKLMN" if repetition of letters (a) is allowed? Your answer is : (b) is not allowed? Your answer is : > Next Question
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