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A bag contains 12 balls out of which ...

A bag contains 12 balls out of which `x` are white. If one ball is drawn at random, what is the probability that it will be a white ball? If 6 more white balls are put in the bag, the probability of drawing a white ball will be double than that in (i). Find `x` .

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RD SHARMA ENGLISH-PROBABILITY -All Questions
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