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Aptitude · Q15

Permutation And Combination

Competitive Exams · Aptitude · question 15

Q15

There are 10 person among whom two are brother. The total number of ways in which these persons can be seated around a round table so that exactly one person sit between the brothers , is equal to:

A.
7! × 2!
Answer
B.
2! × 8!
C.
3! × 7!
D.
3! × 8!
E.
None of these

Answer: Option A

Solution

Answer: Option A
Solution:
Total number of ways = 7! × 2!