Question

8. A box contains 6 pink balls, 5 blue balls, 3 green balls and 6 yellow balls.
Quantity 1: If three balls are drawn at random then the probability that all the
balls are either blue or yellow.
Quantity II: If three balls are drawn at random then the probability that all are of
different colours.
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Answer 1

Answer:

total 20 balls

1. 5/20,6/20

2. 20/20