Question 37
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In how many ways can the letters of REGULATION be arranged so that the vowels occupy only the even positions?
- A 28,800
- B 7,200
- C 36,28,800
- D 14,400 Correct
Correct Answer: Option D
10 letters, 5 vowels (E, U, A, I, O), 5 even places
Vowels: 5! = 120; consonants in odd places: 5! = 120
120 × 120 = 14,400
Answer: 14,400
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