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In how many ways can the letter of the word ' civilization' be arranged?

Correct Answer: 12! / 4! -1

Explanation:

There are 12 letters in the world 'civilization' of which four are i's and other are different letters.
∴ Total number of permutations = 12!/4!
But one word is civilization itself.
∴ Required number of rearrangements = 12!/4! - 1


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