A) \[2\times 12\,!\]
B) 24
C) \[2\times 15\,!\]
D) None of these
Correct Answer: A
Solution :
Since total members are 15, but one is to left, because of circular condition, therefore remaining members are 14 but three special member constitute a member. Therefore required number of arrangements are\[12\ !\ \times 2\], because, chairman remains between the two specified persons and the person can sit in two ways.
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