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In how many ways can 6 people be seated around a circular table?

Answer and explanation

Correct answer: 120

For seating distinct people around a circular table, rotations are considered identical because there is no fixed first seat. The governing formula is therefore (n − 1)!, not n!. With n = 6, fix one person as a reference and arrange the remaining five people in the five available relative positions: (6 − 1)! = 5! = 5 × 4 × 3 × 2 × 1 = 120. Thus option A is correct. Option B, 720, is 6! and incorrectly treats a circular arrangement like a row. Option C, 60, and option D, 360, do not result from the circular-permutation formula.

Related tags

PermutationsCircular ArrangementSeatingPermutations And CombinationsMathematicsClass 11 Mcq

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