Question

A box contains $3$ red, $3$ white and $3$ green balls. A ball is selected at random. Find the probability that the ball picked up is not a red ball:

• A. $\frac{1}{3}$
• B. $\frac{1}{2}$
• C. $\frac{2}{3}$
• D. None of these

Answer 1

Answer: (C)

$\frac{2}{3}$

Total number of outcomes $=9$
Favorable outcomes (the ball is not red) $=6$
Probability $=\frac{6}{9}=\frac{2}{3}$