There are 9 person among whom 2 are 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?  Select.
A) 4!*2!  B) 7!*2!  C) 6!*2!  D) 2!*1!  E) 5!*1!
Total number of ways = 6!*2!.   6!*2!
<result>C</result>
There are 9 person among whom 2 are 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?