NCARB Project Management Practice Exam 2026 - Free Project Management Practice Questions and Study Guide

Space planning for interior design assigns Community Space as a share of the total interior area based on the program’s requirements. In this problem, Community Space is specified as 30 percent of the interior area. To find the square footage, multiply the total interior area by 0.30. If the total interior area is 10,000 square feet, that equals 3,000 square feet for Community Space. So 3,000 SF is the correct allocation. The other numbers would come from different percentage shares (for example, 25% would be 2,500 SF, 35% would be 3,500 SF, and 40% would be 4,000 SF) of the same total area.