A selection is to be made for one post of principal and two posts of vice-princi

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A selection is to be made for one post of principal and two posts of vice-principal amongst the six candidates called for the interview only two are eligible for the post of principal while they all are eligible for the post of vice-principal. The number of possible combinations of selectees is___________?

Options:

A . 4

B . 12

C . 18

D . None of these

Answer: Option D
TOTAL NUMBER OF WAYS = 2C1 . 5C2 = 2 X 5!/3!2! = 2 X 10 = 210

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