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NDA2017MathematicsPermutation and CombinationActual

How many different permutations can be made out of the letters of the word 'PERMUTATION'?

Options

  1. A19958400
  2. B19954800
  3. C19952400
  4. D39916800

Correct answer

A. 19958400

Step-by-step solution

P E R M U T A T I O N 11 letters and T is repeated 2 times. aligned & Different permutations = 11! 2! & =11 10 9 8 7 6 5 4 3 & =19958400 aligned

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