passwella.
Menu

UI Post-UTME Mathematics 2017 (Model questions) Question 13

Question 13

Permutation and Combination

In how many ways can 7 directors sit round a table?

  1. A.720
  2. B.120
  3. C.24
  4. D.5040
Show the answer and explanation

Answer: A (720)

Explanation

n people round a table can be arranged in (n − 1)! ways: 6! = 720.