How many standard control rooms are on floors 2 and 3?

• A. 2 standard control rooms
• B. 4 standard control rooms
• C. 6 standard control rooms
• D. 8 standard control rooms

Answer: (D)

Counting how many standard control rooms appear on each floor and then adding those counts across the two floors is what this question tests. To get the total for floors 2 and 3, identify every standard control room on floor 2, then on floor 3, and sum them. If there are four on each floor, the combined total is eight. That’s why eight is the correct total for floors 2 and 3 together. If you only counted one floor, you’d have four; counting more per floor would change the total accordingly.