A home builder has agreed not to erect all “look alike” homes in a new subdivision.  Five exterior designs are offered to potential home buyers.  The builder has standardized three interior plans that can be incorporated in any of the five exteriors.  How many different ways can the exterior and interior plans be offered to potential home buyers?

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A: Thanks for the question :)And your upvote will be really appreciable ;)

Counting Principles

In statistics, the counting principle can be said to be the concept in which the quantity of an item is determined. There can be a single item, or a group of items, or items that are related to each other. In every possible set of items, the quantity of the possible item groups or their sorting measures can be determined with counting principles.