Question

A bag contains $5$ red and $8$ white balls. If a ball is drawn at random from the bag, what is the probability that it will be:
(i) White ball, (ii) Not a white ball?

Answer 1

Total balls $=5+8=13$
(i) Probability of while ball $=\frac{8}{13}$
(ii) Probability of not a while ball $=1-$ probability of while ball $=1-\frac{8}{13}=\frac{5}{13}$