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Class 11MathematicsPermutations and CombinationsPermutationsExpert
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In how many ways can a necklace be made using (7) distinct beads if rotations and reflections are considered identical?

Answer and explanation

Correct answer: (360)

For a necklace, the count is (\frac{(7-1)!}{2}) because reflection is also identical. Remember the difference between circular arrangements and necklaces.

Related tags

PermutationsClass11ExpertNecklacePermutations And CombinationsMathematicsClass 11 Mcq
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