A bag contains 13 red marbles, 12 green marbles and 5 blue marbles. If you mix up the marbles and pull one out at random, what is the probability that it will be blue? (Answer as a fraction in lowest terms.)
+37146 there are a total of 13 + 12 + 5 = 30 marbles
5 are blue 5 out of 30 = 5/30 = 1/6 as WDPD found !
so yea.
