Hi @Charlesanthonylent thanks for writing in! I agree this one is tricky but I don’t think it’s misleading or incorrect.
The question states to assume that each floor is built to the maximum allowable footprint - footprint can be controlled via setbacks but also FAR - if there’s not enough FAR available to build to the setback lines, an upper floor may be smaller than the floors beneath it. This occurs often in urban areas where there’s a penthouse level, for example.
Think about a more extreme example here - in a more rural setting, a 1-acre site (43,560sf) that’s appx. a 208’ x 208’ square could have an FAR of 0.25 and 5’ setback requirements on all sides. Taking into account the setbacks only, there are about 41,000 square feet on the site that you could build on - but according to the FAR your maximum footprint (for a 1-story building) is 10,890 sf. You wouldn’t say that the maximum footprint is 41,000 - you’d say it’s 10,890. The same applies in this question about a multi-story building on an urban lot.
I hope this clears up any confusion and we’re glad you’re enjoying the quizzes!