Question

8. A bag contains 50 red balls, 30 green balls, 20 black balls. A ball is taken out from the bag at random.
What is the probability that this ball is not a black ball?
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Answer 1

Answer:

4/5

Step-by-step explanation:

Red balls=50

Green balls=30

Black balls=20

Total=Red balls+Green balls+Black balls

Total=50+30+20=100

Not black= 80/100=8/10=4/5