A University Bookstore Opens a Booth and Buys Back Used

question 16

Essay

A university bookstore opens a booth and buys back used books during the final exam week. From 9 to 12 in the morning, students arrive at the rate of 35 per hour, on average. The bookstore employee can service an average of 40 students per hour.
a. What is the average length of the line?
b. What is the average time (in minutes) a student spends in the bookstore (system)?
c. What is the chance that the bookstore employee will be idle?

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Definitions:

General Journal

A comprehensive accounting record of all transactions made by a company, presented in chronological order.

Sales Tax

A tax imposed by governments on the sale of goods and services, collected by the retailer at the point of sale and passed on to the government.

Cash Refund

A repayment to a customer in cash for the return of products or for rebate claims.

General Journal

A primary accounting record used to record all non-specific financial transactions of a business in chronological order.