How many BTUs of cooling does a medium-sized room with an area of 200 square feet approximately need?

To determine the cooling requirement in BTUs for a medium-sized room, we can use a rough general guideline that suggests approximately 20 BTUs per square foot of living space. In the case of a 200 square foot room, the calculation would be:

200 sq. ft. × 20 BTUs/sq. ft. = 4,000 BTUs/hr.

This calculation aligns with the answer indicating a need of 4,000 BTUs per hour. In practice, various factors such as ceiling height, insulation quality, number of windows, and the presence of heat-producing appliances or people in the room can affect the exact requirements, but for a medium-sized room, this guideline remains a sound starting point.

Because the medium-sized room is about 200 square feet, it logically follows that the cooling need would fall within the range of 4,000 to 5,000 BTUs/hr., making that the most appropriate choice.