Find the no.of ways of arranging the boy and 9 guests at a circular table so that the boy always sits in a particular seat? Choose the correct choice from the following choices.
A) 3!
B) 8!
C) 7!
D) 9!
E) 11!
Ans.(D)   Sol. Total number of persons = 10 Host can sit in a particular seat in one way. Now, remaining positions are defined relative to the host. Hence, the remaining can sit in 9 places in 9P9 = 9! Ways ... The number of required arrangements = 9! x 1= 9! = 9! ways
<result>D</result>
Find the no.of ways of arranging the boy and 9 guests at a circular table so that the boy always sits in a particular seat?