Question

A jar contains 30 red, 40 blue, and 50 white buttons. You pick one button at random , find the probability that it is blue.

Answer 1

• 33.33%

Explanation:

To find the probability of blue buttons, divide the amount of blue buttons with the total buttons.

• Blue Buttons/Total Buttons
• => 40/30 + 40 + 50
• => 40/120
• => 1/3 = 33.33%

Hence, the probability of the button chosen is blue is 33.33%.

Answer 2

33.33%

Explanation:

Probability is a percentage. To determine probability you would add all of the buttons together to equal 120 buttons. Then you would divide the number of blue buttons by that total or 40/120 which equals 0.333333; this number in a percentage is 33.3333% (or roughly 1/3).