Question

There are 20 counters in a box.

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.

Answer 1

0.75

step by step explanation :

green
`=20-3-2-5=10`

yellow or green
`5+10=15`

P (yellow or green)
`=(15)/(20) =(3)/(4) = 0.75`