The table below shows the ages (in years) of 360 patients, getting treatment in a hospital. One of the patient is selected at random. The probability that his age is 10 years or more is

Question

$\begin{array}{1 1} (a)\;0 \\ (b)\; 1 \\ (c)\; \frac{1}{360} \\ (d)\; \frac{1}{6} \end{array}$