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WAEC Further Mathematics 2007 Question 38

Question 38

Permutations and Combinations

A group of 5 boys and 4 girls is to be chosen from a class of 8 boys and 6 girls. In how many ways can this be done?

  1. A.840
  2. B.480
  3. C.408
  4. D.380
Show the answer and explanation

Answer: A (840)

Explanation

⁸C₅ × ⁶C₄ = 56 × 15 = 840.