Question

A child is asked to pick up 2 balloons from a box containing 10 blue and 15 red balloons. What is the probability of the child picking, at random, 2 bal- loons of different colours?​

Answer 1

So the child picked up 2 balloons out of total of 25 red and blue balloons.

The probability of getting a blue balloon is 1/10 and the probability of getting a red balloon is 1/15.

and the probability of picking at random to get two balloons of different colours is 1/25

Hope this helps you...