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A carton contains 15 toothbrushes, of which p have soft bristles. After 5 more toothbrushes with soft bristles are added to the carton, the probability of drawing a toothbrush with soft bristles becomes 3. Find the value of p. 34​

Question

A carton contains 15 toothbrushes, of which p have soft bristles. After 5 more toothbrushes with soft bristles are added to the carton, the probability of drawing a toothbrush with soft bristles becomes 3. Find the value of p. 34​

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Solution

The problem seems to have a typo. The probability of an event cannot be more than 1 (or 100%). The probability of drawing a toothbrush with soft bristles becoming 3 is not possible. Please check the problem and provide the correct details.

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