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JAMB 1983 · UME · Q29

The letters of the word MATRICULATION are cut and put into a box. One letter is drawn at random. Find the probability of drawing a vowel.

Worked solution (try it first)
  1. MATRICULATION has 13 letters, so there are 13 equally likely outcomes.
  2. Count every vowel, repeats included: A, I, U, A, I, O.
  3. That is 6 vowels.
  4. So the probability is 613\frac{6}{13}, option C.

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