Home Maths Permutations & Combination Grouping and Circular Permutation In how many ways 5 persons can sit at a roun…
Maths Permutations & Combination Grouping and Circular Permutation Subjective Type
Published on: August 14, 2026

In how many ways 5 persons can sit at a round table, if two of the persons do not sit together?

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CHECK THE SOLUTION.

12

Sol. First find if all the person are sitting in a round table is 4! = 24 ways

if two of the person are sitting together i.e.

3! × 2! = 12 ways

Hence required number of ways = 24 – 12 = 12 ways

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