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NDA2010MathematicsPermutation and CombinationActual

What is the number of words that can be formed from the letters of the word 'UNIVERSAL', the vowels remaining always together?

Options

  1. A720
  2. B1440
  3. C17280
  4. D21540

Correct answer

C. 17280

Step-by-step solution

Total number of letters =9 Number of vowels =4 We take vowels as 1 letter then total number of letters =6

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