GATE CS 2014 Set 1 Q32 — CPU Scheduling

Consider the following set of processes that need to be scheduled on a single CPU. All the times are given in milliseconds.
$$\small \begin{array}{|c|c|c|} \hline \textbf{Process Name} & \textbf{Arrival Time} & \textbf{Execution Time} \\ \hline \text{A} & 0 & 6 \\ \text{B} & 3 & 2 \\ \text{C} & 5 & 4 \\ \text{D} & 7 & 6 \\ \text{E} & 10 & 3 \\ \hline \end{array}$$Using the shortest remaining time first scheduling algorithm, the average process turnaround time (in msec) is ____________________.