Question

There is a bag filled with 4 blue and 5 red marbles.

A marble is taken at random from the bag, the colour is noted and then it is replaced.
Another marble is taken at random.
What is the probability of getting 2 that are different in colour?

Answer 1

1 out of 2

Explanation:

1 out of 2 as there are only two colours

Option 1: 2 the same colour

Option 2: 1 of each colour