Consider the following set of jobs to be scheduled for execution on a single CPU system

$($a$)$ Draw a Gantt chart showing preemptive SRJF scheduling.

$($b$)$ Calculate and show the average waiting time and turnaround time.

$($c$)$ Now assume that, process $P3$ used the CPU for $(10ms,4ms,11ms)$ in its $3$ previous executions. What will be

the next CPU burst prediction for P$3$ if the system uses exponential averaging with $=0\mathrm{.}6$ for most recent

past and $=0\mathrm{.}4$ for the earlier cpu usages.