The number of permutations of the letters of the word EXERCISES ta | Filo
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Class 11

Math

Algebra

Permutations and Combinations

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The number of permutations of the letters of the word EXERCISES taken 5 at a time is

  1. 2250
  2. 30240
  3. 22660
  4. None of these
Correct Answer: Option(a)
Solution: Given word is
Hence
Hence the required combination is
the coefficient of in

Simplifying , we get the coefficient as



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