A box contains 6 red balls, 7 green balls and 5 blue balls. Each ball is of a different size. The probability that the red ball selected is the smallest red ball, is
a) 1/18
b) 1/3
c) 1/6
d) 2/3
Ans: c) 1/6
Given that the ball selected is red, since there are 6 red balls, the probability that the ball selected is a particular ball is 1/6.
