How Many Different Three-Digit Numbers Can Be Written Using Digits

question 355

Multiple Choice

How many different three-digit numbers can be written using digits from the set {5, 6, 7, 8, 9} without any repeating digits?

• A) 20
• B) 120
• C) 60
• D) 10

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Definitions:

Chairs

Objects designed for seating, typically consisting of a seat, back, legs, and sometimes armrests, used for various purposes including dining and office work.

MC

Short for Marginal Cost, it is the change in total cost that arises when the quantity produced is incremented by one unit; it is the cost of producing one more unit of a good.

AVC

Average Variable Cost, the cost of labor or material that changes with the level of output or production.

ATC

Average Total Cost, which is the total cost divided by the quantity of output produced, representing the per unit cost of production.