Question

6 of the counters are red.

5 of the counters are green.
The rest of the counters are blue.
Lethna takes at random one of the counters from the box.
Find the probability that she takes a counter thay is not green.

Please help me with this

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`