Question

A bag contains 15 marbles. The probability of randomly selecting a green marble is . The probability of randomly selecting a green marble, replacing it, and then randomly selecting a blue marble is . How many blue marbles are in the bag?

Answer 1

so there is 1/5 out of 15 green marbles so that makes 3 and there was 2/25 Chance of getting a blue so replacing the green so i assume its 6 marbles now

Answer 2

Answer is unknown because we do not know how many green marbles there are or how many blue there are. We also do not have information on if there is any other colors in the bag. Answer could probably be found if the probability of randomly selecting a green marble was.