A bag contains 3 red marbles, 5 yellow marbles, and 4 blue marbles. One marble is chosen at random. What is the probability that the chosen marble will be blue?

Question

A) 1/12
B) 1/4
C) 1/3
D) 3/4

I think it is B. 1/4

Answer 1

Nope.

4/12 = ?

Answer 2

1/3

Answer 3

Yes, 1/3