Question

A bag contains 3 white, 4 red and 5 black balls. One ball is drawn at random. What is the probability that the ball drawn is neither balck nor white?

Answer 1

Correct Answer - C
Total number of balls in the bag = ` 3+4 + 5 = 12`.
Number of non-black and non-white balls = 4.
`:.` P(getting a ball which is neither black nor white) ` = 4/12 = 1/3`.