Question
The probability of solving a problem by three persons A, B, and C independently is $ \frac{1}{2} $, $ \frac{1}{4} $, and $ \frac{1}{3} $ respectively. Then, the probability that the problem is solved by any two of them is
The probability of solving a problem by three persons A, B, and C independently is $ \frac{1}{2} $, $ \frac{1}{4} $, and $ \frac{1}{3} $ respectively. Then, the probability that the problem is solved by any two of them is