(3)
A bag contains 12 balls out of which x are black balls. Find the probability of getting a
black ball if one ball is drawn. If 6 more blacks balls are added in the bag, the probability
of getting a black ball will be double. Find x.
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0
Answer:
p(when 12 balls)=x/12.
p(of black ball when 6 more balls added)=6+x/18.
according to question .
x/12=6+x/18
x=12ans.
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2
Answer:
I don’t know if I am right
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