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AP EAMCET2002MathematicsPermutation and Combination

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

Options

  1. A2520
  2. B2880
  3. C4320
  4. D5040

Correct answer

A. 2520

Step-by-step solution

Number of ways = (8-1) ! 2 = 7 ! 2 =2520

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