Permutations & Combinations Mcqs
Q. 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___________?
a. 4
b. 12
c. 18
d. None of these
Total number of ways = 2C1 . 5C2 = 2 x 5!/3!2! = 2 x 10 = 210