\( P(G | \overline{H}) \) is the conditional probability of \( G \) given \( \overline{H} \).
\( P(G \cap \overline{H}) \) is the probability that both \( G \) and \( \overline{H} \) occur.
\( P(\overline{H}) \) is the probability that \( H \) does not occur.
\[ P(G | \overline{H}) = \frac{P(G \cap \overline{H})}{P(\overline{H})} = \frac{1}{3} \]Four students of class XII are given a problem to solve independently. Their respective chances of solving the problem are: \[ \frac{1}{2},\quad \frac{1}{3},\quad \frac{2}{3},\quad \frac{1}{5} \] Find the probability that at most one of them will solve the problem.