GMAT Quantitative Reasoning Practice Test 4

When rolling two dice, there are 36 possible pairs of results $\left(6\times 6\right)$.
A sum greater than 10 can only be achieved with the following combinations: $\left(6,6\right),\left(5,6\right),\left(6,5\right)$. Therefore, the probability is $\frac{3}{36}=\frac{1}{12}$.