Question

A bag

contain 20 red, 15 yellow and 25 blue balls.
Uncle K takes one ball from the bag. Find the probability
that the ball is:
Red
Yellow
Blue
Red or yellow

Answer 1

The probability that the ball is:

Red - 20:60 (simplified is 1:3)

Yellow - 15:60 (simplified is 1:4)

Blue - 25:60 (simplified is 5:12)

Red or yellow - 35:60 (simplified is 7:12)