$(10$ pts$)$ Compute the CPU utilization factors for the concurrent processes shown below. Schedule these processes on the minimal number of CPUs, so that utilization of any given CPU does not exceed $50\%.$

Enter the answers into the table below. The "Assign to CPU" column should contain the identifier for the CPU to which the process is assigned, such as "CPU$1",$ "CPU$2",$ etc.

$\backslash$table$[[$Process$,$Period, ms$,$Execution time, ms$,\backslash$table$[[$CPU Utilization$],[$factor$]],\backslash$table$[[$Assign to$],[$CPU$]]],[$A$,10,4,,],[$B$,30,5,,],[$C$,100,25,,],[$D$,100,50,,]]$

Number of CPUs needed: