Processes arrives in order of P$1,$ P$2,$ P$3,$ P$4$ and P$5$ at the same time of $0($zero$).$ For First Come First

Serve $($FCFS$)$ and Shortest Job First $($SJF$)$ algorithms.

a$)$ Find the waiting times for each process.

b$)$ Find the average waiting times.

c$)$ Draw the Gantt charts.