JEE Main Mathematics question

Mathematics Permutations and Combinations JEE Main

The number of ways in which seven persons can be arranged at a round table, if two particular persons may not sit together is

(A)Correct
(B)
(C)
(D)None of these

Answer: (A)

Solution

Seven persons can be seated round a table in ways. With the two particular persons together (as a block,

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Question ID VK-020650