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WAEC Further Mathematics 2020 Question 26

Question 26

Permutations and Combinations

In how many ways can the letters of the word MEMBER be arranged?

  1. A.720
  2. B.360
  3. C.180
  4. D.90
Show the answer and explanation

Answer: C (180)

Explanation

6 letters with M twice and E twice: 6!/(2! 2!) = 720/4 = 180.