Consider a First$-$Come First$-$Served $($FCFS$)$ CPU scheduler with the following process profile:

Process Arrival Time CPU Burst

P$1$ t $4$

P$2$ t$+52$

P$3$ t$+27$

P$4$ t$+103$

P$5$ t$+69$

P$6$ t$+115$

Determine the schedule of process execution. Compute the turnaround times for each of the six processes in this schedule. Which of the following is TRUE about their turnaround times?