Seven persons are to be seated in a row....

Seven persons are to be seated in a row. The probability that two particular persons sit next to each other is (A) `1/3` (B) `1/6` (C) `2/7` (D) `1/2`

A

`3//7`

B

`2//7`

C

`4//7`

D

`5//7`

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The correct Answer is:

B

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