Question

A bag contains 3 red marbles, 4 blue marbles, and 5 white marbles. What is the probability of pulling out first a red, then a blue marble if none are replaced?

Answer 1

there are a total of 3 + 4 + 5 = 12 marbles

probability of pulling a red marble is 3/12

probability of pulling a blue marble is 4/11

so the probability of pulling them is 3/12 x 4/11

got that?

Answer 2

sgo its be 1/11

Answer 3

seems like it