$(25)$ Suppose we have two servers in the system. A total number of customers in the system of $6(2$ being served, $4$ waiting in the queue for service$).$ Note too that the package assumes that these two servers are fed from a single queue $($rather than each having their own individual queue. When a message queue reaches its maximum capacity, any new messages that are sent to the queue may be dropped or rejected. Queue discipline is FIFO. Determine the time $($all$)$ when the waiting queue can't accommodate the incoming customers.$)$

$\backslash$table$[[$Data Description,ENTRY$],[$Number of servers,$2],[$Service rate $($per server per minute$),4],[$Customer arrival rate $($per minute$),3],[$Queue capacity $($maximum waiting space$),4],[$Customer population,$100]]$