1
Question
The number of ways that 7 boys can be seated round a table so that 2 particular boys are always separated, is
Open in App
Solution
The correct option is C 480
Total ways of arranging 7 boys at a round table = (7–1)! = 6! = 720
Total ways of arranging 2 boys sitting together = 5! 2! = 240.
∴ Total number of ways in which they are separated = 720 – 240 = 480
Total ways of arranging 7 boys at a round table = (7–1)! = 6! = 720
Total ways of arranging 2 boys sitting together = 5! 2! = 240.
∴ Total number of ways in which they are separated = 720 – 240 = 480
Suggest Corrections
0
Similar questions
View More
Join BYJU'S Learning Program
Explore more
Join BYJU'S Learning Program
