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A bag contains 15 white balls and some b...

A bag contains 15 white balls and some black balls. If the probability of drawing a black ball is thrice that of a white ball, find the number of black balls in the bag.

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To solve the problem step by step, we will follow the reasoning laid out in the video transcript while ensuring clarity and precision. ### Step-by-Step Solution: 1. **Define Variables**: Let the number of black balls in the bag be \( x \). 2. **Calculate Total Number of Balls**: ...
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