Question

a bag contains 5 blue marbles 4 white marbles and 3 red marbles if 3 marbles are randomly selected from the bag what is the probability that exactly 2 of the 3 selected will be the same color

Answer 1

2/12 or 1/6 because altogether there are 12 marbles and if you select 2 of the the chance is 2/12

correct me if i'm wrong