Question

There are 20 counters in a bag.

3 of the counters are red.
2 of the counters is blue.
5 of the counters are yellow.
The rest of the counters are green.
Ajay takes at random a counter from the bag.
(c) Show that the probability that this counter is yellow or green is

Answer 1

0.75

Explanation:

Green = 20 - 3 - 2 - 5 = 10

Yellow or green = 5+10 = 15

P(yellow or green) = 15/20

= 3/4 = 0.75