The number of ways that 8 beads of different colours be strung as a necklace is

The number of ways that 8 beads of different colours be strung as a necklace is
  1. $2520$
  2. $2880$
  3. $4320$
  4. $5040$

Solution

Number of ways $ =\frac{(8-1) !}{2}=\frac{7 !}{2}=2520 $

Asked in: AP EAMCET 2002

Practice more Permutation Combination questions on Aicharya