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Permutation & Combination Or Probability Questions

  • Numerical Ability - Permutation & Combination Or Probability
Question
In how many different ways can the letters of the word 'THERAPY' be arranged so that the vowels never come together?
  • A) 720
  • B) 1440
  • C) 5040
  • D) 3600
  • E) 4800
Solution

Answer (D)

Explanation:

Therapy -7! 

Vowels -2!

Sol - 7!- 6!*2

5040 - 720*2

5040 - 1440

=> 3600

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