Which of the following will equal the average time that a customer is in the system?

a. The average number in the system divided by the arrival rate.

b. The average number in the system multiplied by the arrival rate.

c. The average time in line plus the average service time.

C. The average time in line plus the average service time.

Explanation:

Customer services is a skill in business that requires interactivity with customers, and an approach to gaining their trust and loyalty.

A queue is a straight line arrangement of entities. Customer service queueing system is a queue of customers, taking turns for a product or service.

The average time a customer spends in a system is equivalent to the average time on queue plus the average time for services rendered to customers before him and including him.