A boy contains 12 balls of which some are red in colour if 6 more red balls are put in the box and a ball is drawn at random the probability of getting
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Probability before adding 6 balls is x/12
Probability after adding 6 balls is 6+x/12+6=6+x/18.
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Probability after adding 6 balls is 6+x/12+6=6+x/18.
Question is not completed.
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