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प्रश्न
How many permutations can be formed by the letters of the word, 'VOWELS', when
there is no restriction on letters?
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उत्तर
The word VOWELS consists of 6 distinct letters that can be arranged amongst themselves in 6! ways.
∴ Number of words that can be formed with the letters of the word VOWELS, without any restriction = 6! = 720
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