Normal
John has a bag of different colored marbles. He has 6 red marbles, 3 blue marbles, 7 yellow marbles, and 5 green marbles. If John reaches into the bag and randomly pulls out a marble, what is the probability that the marble will be blue? (If necessary, round to the nearest tenth.)
A.
14.3%
B.
28.6%
C.
30.0%
D.
85.7%
There are 21 total marbles in the bag. Out of those, 3 are blue, so the probability of getting a blue marble is:
3/21 = 0.14
or
14.3% (rounded to the nearest tenth)
Therefore, the answer is option A.