Published by:
CGP EDU Academic Team
Published on: August 13, 2026
20 persons are invited for a party. In how many different ways can they and the host be seated at a circular table, if the two particular persons are to be seated on either side of the host
A
B
C
D
None of these
Text Solution
Verified by ExpertsThe correct answer is:
B
There are 20 + 1 = 21 persons in all. The two particular persons and the host be taken as one unit so that these remain 21 – 3 + 1 = 19 persons to be arranged in 18 ! ways. But the two person on either side of the host can themselves be arranged in 2! ways. Hence there are 2 ! 18 ! ways or 
ways.
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