please ans the two sections with steps

Suppose you have the following processes: Process P1 P2 P3 P4 PS Arrival Time 0 1 3 5 7 Burst Time 13 10 2 7 13 Use the following multilevel feedback queue CPU scheduling algorithm to execute the above processes: Queue 1: using RR CPU scheduling algorithm with Q = 4 ms. Queue 2: using RR CPU scheduling algorithm with Q = 6 ms, and Queue 3: using FCFS CPU scheduling algorithm quartum 4 Quantum - 6 FCFS 1. Draw the Gantt Chart for Queue 2. 2. Find the total waiting time for process P2. Hint: Once a process executed from one queue it should go direct to start execution in the next queue if this queue is free. Hint 2: The starting time is 0 for Queue 1 only and it is different in all remaining queues