Question

There is a bag filled with 5 blue, 2 red and 3 green marbles.

A marble is taken at random from the bag, the colour is noted and then it is not replaced.
Another marble is taken at random.
What is the probability of getting 2 different colours?

Answer 1

7/25

Explanation:

working out above.

To find the probability = Times BB RR and GG

then at the end add them all together.