Question

A bag contains 7 red marbles, 8 blue marbles, and 9 green marbles. What is the

probability of choosing a blue marble when one marble is drawn?

Answer 1

The probability of choosing a blue marble is 1/3.

Explanation:

Add up all of the marbles.

7+8+9=24.

Next, you get the fraction of the chosen marble type over all marbles. In this case, it's blue, so it's 8/24

Finally, you must simplify the fraction.

1/3 is the simplest form of 8/24.