Question
Question: The no. of ways in which 6 boys and 6 girls can be seated around a circular table so that all girls ...
The no. of ways in which 6 boys and 6 girls can be seated around a circular table so that all girls are together
A
6! 7!
B
6! 4!
C
6! 6!
D
6! 5!
Answer
6! 6!
Explanation
Solution
Consider all girls as one unit.
∴ Total no. of units =7
These 7 units can be arranged on a circular table in (7-1) ! = 6! ways. But 6 girls can arrange among themselves in 6! ways.
∴ Total no. of ways = 6! 6!.