Give a quick stream of consciousness before answering the following question. There are 10person 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?
Options:
(A) 7!
(B) 7!*2!
(C) 7!*3!
(D) 8!*1!
(E) 8!*4!
user
Total number of ways = 7!*2!.
The answer: (B).
assistant