Question

A bag contains 10 marbles: 4 are green, 2 are red, and 4 are blue. Pablo chooses a marble at random, and without putting it back, chooses another one at random. What is the probability that the first marble is blue and the second is green? Write your answer as a fraction in simplest form.

Answer 1

12/90 or 2/15

Explanation:

1st marble is blue is 4/10

2nd marble is blue is 3/9

Multiple together and the probability is 12/90 or 2/15