Question

A bag of marbles contains 5 red, 7 purple, and 3 blue marbles. If one marble is

chosen at random, what is the probability that the marble is NOT blue?

Answer 1

Answer: 4/5

Explanation:

Total marbles = 5 + 7 + 3

P(Red) = 5/15

P(Purple) = 7/15

P(Not Blue) = P(Red) + P(Purple)

= 5/15 + 7/15

= 12/15 or 4/5