Question

There are 1 green, 3 black, 5 blue and 6 red marbles. She reaches into the bag and chooses 1 marble without looking.What is the probability that the marble she selects is NOT blue? Write in a fraction

Answer 1

Explanation:

Total marbles = 1 + 3 + 5 + 6 = 15

Probability of not blue marble = 10 / 15 = 2 / 3