Question

2. Hand trace the ticket counter problem for 22 customers and 5 cashiers (Each customer is identical, and the service time of each customer is 100 seconds). There is one line, and each customer waits in the line to get service. If a cashier is available, the customer starts to get service from the available cashier. Fill the following table with the time when the customer starts to get service from which Cashier according to arrival times of customers by assuming the infinity number of customers can wait in the waiting line. What can you summarize from these results?

Cutomer Number	Arrival time	Cashier 1	Cashier 2	Cashier 3	Cashier 4	Cashier 5	Wait Time	Total Time
1	0
2	20
3	30
4	40
5	50
6	60
7	70
8	80
9	90
10	100
11	120
12	130
13	140
14	150
15	160
16	180
17	190
18	200
19	220
20	240
21	250
22	300

Answer 1

System wait time is going up. If this system were to continue, customer wait time would continue to increase without bond.

Example is Standing in line at store check out or a waiting list to join a club.