Question

A bag contains 5 red marbles, 10 green marbles, and 20 yellow marbles. If Teresa takes one marble out of the bag without looking, what is the probability that it is green?

Answer 1

Hello!

There are 35 total marbles. If there are ten green marbles, we get the probability below.

$\frac{green}{total} = \frac{10}{35} = \frac{2}{7}$

She has a 2/7 chance of selecting a green marble, which is about 28.57% chance.

I hope this helps!