III. A MLF algorithm uses $5$ priority levels. At level $5,$ a process executes for $Q=2ms.$ At each of

the lower levels the quantum is doubled $(2Q,4Q,8Q,16Q).$

The following processes are to be scheduled:

After termination, process $1$ blocks for $5ms$ and then reenters the queue again at level $5.$

Similarly, process $2$ blocks for $6ms$ and then reenters the queue again at level $5$

a$)$ Draw a timing diagram for the first $21ms.$ On each of the $3$ lines $($one per process$)$ show when

the process is running and at which priority level.

b$)$ Determine the ATT for each process.