A Package Delivery Service Uses Vans and Employees to Deliver

question 83

Multiple Choice

A package delivery service uses vans and employees to deliver the maximum number of packages given a fixed budget.The last van added 600 packages to total output,while the last employee added 500 packages.If vans cost $400 per week and employees earn $300 per week,the firm

• A)could deliver more packages with the same budget by using more employees and fewer vans.
• B)could deliver more packages with the same budget by using more vans and fewer employees.
• C)should use more vans and fewer employees because the last dollar spent on vans added more to total output than the last dollar spent on employees.
• D)is delivering the maximum number of packages given the fixed budget.
• E)both b and c

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Definitions:

Foreign Key

A field in a database table that creates a link between two tables, identifying a row in another table to establish a relationship.

Primary Key

A unique identifier for each record in a database, used to ensure that each row represents a unique instance of the entity modeled by the table.

Secondary Key

A database attribute used for sorting and/or indexing data, which is not the primary key.

Relational Database Model

Data model based on the simple concept of tables in order to capitalize on characteristics of rows and columns of data.