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If n distinct things are arranged in a c...

If n distinct things are arranged in a circle, find the number of ways of selecting three of these things so that no two of them are next to each other.

A

n(n-2)(n-3)

B

1/6n(n-4)(n-5)

C

`1/3 (n^2+3n-5)`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
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