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Unilorin Post-UTME Mathematics 2023 (Model questions) Question 6

Question 6

Permutation and Combination

In how many ways can a committee of two boys and one girl be selected from a group of five boys and three girls

  1. A.10
  2. B.30
  3. C.44
  4. D.60
Show the answer and explanation

Answer: B (30)

Explanation

Choose 2 of 5 boys (5C2 = 10) and 1 of 3 girls (3 ways): 10 × 3 = 30.