Multiple choice

In how many different ways can the letters of the word 'POSTER' be arranged so that the vowels do not come together?

  1. 720

  2. 480

  3. 1440

  4. 5040

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Total arrangements of 6 letters = 6! = 720. Treat vowels (O, E) as one group: 5 items × 2! = 240 arrangements with vowels together. Subtract from total: 720 - 240 = 480 arrangements where vowels are separated.

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