What is the probability of pulling out a red cube then a blue one?

Question

One yellow cube, one blue cube and two red cubes are placed in a bag. They are mixed up and two cubes are pulled out, one at a time without looking. What is the probability of pulling out a red cube then a blue one?

Answer 1

There are 4cubes total The probability of first pulling a red is 2/4 or 1/2

Now there are 3 cubes left one of which is blue so probability of pulling blue is 1/3

To find the probability of both events we multiply their individual probabilities

So (1/2)(1/3)= 1/6