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JEE MATHEMATICS MCQ: PERMUTATIONS

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The number of 3 letters words, with or without meaning which can be formed out of the letters of the word 'NUMBER'.

Statement I: When repetition of letters is not allowed is 120.

Statement II: When repetition of letters is allowed is 216.

Choose the correct option.

View answer and explanation

Correct option: C

Both I and II are correct

Option C (Both I and II are correct) is correct because the number of 3-letter words without repetition is 120 and with repetition is 216.

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