Question: Consider the queueing system for the walk-in services of a post office. Customer arrives at an average rate of 30 per hour. The average service

Consider the queueing system for the walk-in services of a post office. Customer arrives at an average rate of 30 per hour. The average service rate is 40 customers per hour per server. There are 2 servers. Customers join a single queue to get served. The customers get served first-come-first-served (FCFS). What is the average utilization rate of a server?

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