67
The probability of guessing the correct answer of a certain test question is $\frac{x}{12}$. If the probability of not guessing the correct answer is $\frac{5}{6}$, then find the value of $x$.
Show SolutionHide Solution↓
Sol. $\frac{x}{12} + \frac{5}{6} = 1$
$x = 2$
$x = 2$