A students' restaurant has $3$ parallel servers with a single queue and one cashier. The student arrives first to the servers in order to take his food, then goes directly to the cashier. Both servers and cashier serve students as FIFO.

The following is a snapshot of the system at simulation time $59.$ Notations are shown below. Complete the remaining table for the next three snapshots, then calculate the utilization of the cashier and the maximum cashier queue length. $(15$ points$)$

Use the following data as needed:

Inter$-$Arrival Times $($ minWhere is the solution