Conceptual Question $16-2$ Queuing system A has a utilization...

Queuing system A has a utilization of $80$ percent, and queuing system B has a utilization of $90$ percent. Both have a single server. Say the utilization of both systems increases by $5$ percent; that is$,$ A increases from $80$ percent to $85$ percent while B increases from $90$ percent to $95$ percent. Which system is likely to experience the bigger change in the average time in queue?

multiple choice

System A$.$

System B$.$

Time in queue for each system will increase by the same amount.

More information is needed to determine which has a bigger change in average time in queue.