Question

There are 5 red marbles, 8 blue marbles, and 12 green marbles in a bag.

What is the theoretical probability of randomly drawing either a red marble or a blue marble?

20%
32%
52%
13%

Answer 1

52%

Explanation:

Answer 2

So you want probability of red and blue so add them
5+8=13
Than you add to see how many total in the bag
5+8+12=25
Now divided
13/25=52%