# math

posted by
**sam** on
.

A druggist wishes to select three brands of aspirin to sell in his store. He has five major brands to choose from: A, B, C, D and E. If he selects the three brands at random, what is the probability that he will select the following?

(a) brand B

(b) brands B and C

(c) at least one of the two brands B and C