Question

There are a total of 20 cubes in a box. There are 8 red cubes, 6 green cubes, 4 orange cubes, and 2 yellow cubes. What is the probability written in simplest form that the first cube to be selected will be either green or yellow?​

Answer 1

Green = 6
Yellow = 2

6 + 2 = 8

8/20 can be simplified to 2/5