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0 votes
9.6k views
in Mathematics by (71.2k points)

In how many ways can 15 members of a school sit along a circular table, when the secretary is to sit on side of the principal and the deputy secretary on the other side ?

(a) 2 x 12! 

(b) 24 

(c) 2 x 15! 

(d) 2! x 13!

1 Answer

+1 vote
by (76.3k points)
selected by
 
Best answer

Correct option: (a) 2 x 12! 

Explanation:

Sit of three persons are fixed.

∴ 12! x 2

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