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ur ans is (18-x)/18
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Step-by-step explanation:
there are 18 - x balls which are not red. the probability of a none red ball is therefore (18 - x) / 18.
wrong
no it is not. it is the right answer
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total no.of balls=18
no.of red balls=x
no.of ball which are not red=18-x
p(e)=no.of balls which are not red/total no.of balls
=(18-x)/18
hope it helps you.....
no.of red balls=x
no.of ball which are not red=18-x
p(e)=no.of balls which are not red/total no.of balls
=(18-x)/18
hope it helps you.....
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