JAMB Mathematics 2001 Question 48

Question 48

Permutation and Combination

If 6Pr = 6, find the value of 6Pr + 1.

  1. A.15
  2. B.30
  3. C.33
  4. D.35
Show the answer and explanation

Answer: B (30)

Explanation

6P1 = 6, so r = 1. Then 6P2 = 6 × 5 = 30.