Question

You have 1 red marbles, 2 green and 2 blue marbles. What is the probability of pulling a blue marble and then without replacing the first marble grabbing a red marble?

Answer 1

blue marble = 2/5

red marble = 1/4

Explanation:

The total probability is the total amount of marbles there are.

There are 5 at the start and 2 blue marbles so the probability is 2/5

Since you dont replace it the new total is 4 and there is only one red so 1/4