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Class 11MathematicsPermutations and CombinationsPermutationsExpert
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In how many ways can a necklace be made with (8) distinct beads if rotations and reflections are considered identical?

Answer and explanation

Correct answer: (2520)

The number of necklaces is ((8-1)!/2) because both rotations and reflections are identical. Remember the difference between necklaces and circular seating.

Related tags

PermutationsNecklaceCircular PermutationsPermutations And CombinationsMathematicsClass 11 Mcq
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  5. 5Three distinct prizes are to be awarded to seven students. No student can receive more than one prize. How many ways are possible?
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