Question

A bag contains 5 blue marbles, 6 red marbles, and 9 green marbles. Two

marbles are drawn at random, one at a time and without replacement.
What is the probability of selecting two blue marbles?

Answer 1

10%

Explanation:

What you have to do is add the total and then divide 2 by it, so 2 divided by 20 equals 0.10 which is equivalent to 10%