There are 13person among whom 2are brother. The total no.of ways in which these persons can be seated around a round table so that exactly 1person sit between the brothers, is equal to?\nOptions:\n(A) 4!*2!\n(B) 7!*2!\n(C) 6!*1!\n(D) 10!*2!\n(E) 5!*1!
Think hard. Detailed solution:
(D)
Total number of ways = 10!*2!.

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The answer is (D)