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Given that n is odd, number of ways in w...

Given that n is odd, number of ways in which three numbers in AP can be selected from 1, 2, 3,……., n, is

A

`(3(n-1))/(n(n-2))`

B

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

C

`(n-2)/(n(n-1))`

D

`(3(n-1))/(2n(n-2))`

Text Solution

Verified by Experts

The correct Answer is:
D
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