Assume that you are drawing two balls without replacements from an urn that contains 10 green balls 10 blue balls and 3 red balls what is the probability that you will draw a blue ball And read ball

Question

Assume that you are drawing two balls without replacements from an urn that contains 10 green balls 10 blue balls and 3 red balls what is the probability that you will draw a blue ball and a red ball ?

Answer 1

1st B, then R 10/23 x 3/22 = 15/253 = 5.93%

1st R then B, 3/23 x 10+22 = 15/253 = 5.93%

0dds R then B 0r B then R are 15/253 + 15/253 = 30/253 = 11.86%