Find the no.of ways of arranging the boy and 11 guests at a circular table so that the boy always sits in a particular seat? Choices
A) 3!  B) 8!  C) 7!  D) 9!  E) 11!
Ans.(E)   Sol. Total number of persons = 12 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 11 places in 11P11 = 11! Ways ... The number of required arrangements = 11! x 1= 11! = 11! ways
<result>E</result>
Find the no.of ways of arranging the boy and 11 guests at a circular table so that the boy always sits in a particular seat?