1.

A regular polygon of n sides is constructed. No. of ways 3 vertices be selected so that no two vertices are consecutive is

Answer»

`""^(n)C_(3)-n.(n-4)`
`""^(n)C_(3)-n-n(n-4)`
`""^(n)C_(3)+n-n(n-4)`
`""^(n)C_(3)-n.n.(""^((n-4))C_(2))`

ANSWER :B


Discussion

No Comment Found

Related InterviewSolutions