What is the total number of lots being developed by the developer?

To determine the total number of lots being developed by the developer, we analyze the scenario presented in the question. The answer indicating 20 lots suggests that the developer has decided on this specific quantity for the project.

In real estate development, the number of lots is crucial as it defines the scale of the project, affects financing, influences the construction process, and impacts the property market. The choice of 20 lots may reflect considerations such as market demand, zoning regulations, and the intended use of the properties.

Selecting a figure such as 20 indicates a strategic decision by the developer to balance aspects like available land, anticipated sales, and operational logistics. Other numbers like 10, 15, or 25 may not align with the developer's plans, possibly because they either represent a project that is too small to be economically viable or exceed the operational capacity or market research.