106seat whom on a circular table??
Q6 4 boys and 3 girls ........... find the no. of ways to seat them on a circular table such that no two girls sit together. a) 0 b) 3!*4! c) 3!*3! d) 3! Correct Answer: (b)
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4 Answers
106see there are 4 boys and 3 girls....
first put 4 boys on table.
no. of ways to seat 4 boys on circular table = (4-1)! = 3!
Now from 4 spaces left, 3 girls have to be seated. So, no. of arrangements = 4P3 = 4!/(4-3)! = 4!
So, total no. of arrangements = 3!*4!