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- Try this! The number of ways in which 5 boys and 3 girls can be seated on a round table if a particular boy B1 and a particular girl G1 never sit adjacent to each other, is :
The number of ways in which 5 boys and 3 girls can be seated on a round table if a particular boy B1 and a particular girl G1 never sit adjacent to each other, is :
- Option 1) 5 x 6 !
- Option 2) 6 x 6 !
- Option 3) 7!
- Option 4) 5 x 7!
Answers (1)
As we learnt in
Rule for Circular Permutations -
(n - 1)! = Clockwise + Anticlockwise arrangement.
Ex. Seating arrangement of persons round a table.
- wherein
DISTINCT arrangement.
Number of ways = Total - when B1 and G1 sit together
Total ways to seat 8 people on table = 7!
When B1 and G1 sit together
Number of ways
Correct option is 1.
Option 1)
This is the correct option.
Option 2)
This is an incorrect option.
Option 3)
This is an incorrect option.
Option 4)
This is an incorrect option.
View full answer
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