Which way do 2-digit even numbered interstate highways run?

Which way do 2-digit even numbered interstate highways run?

• A. East-west
• B. North-south
• C. Diagonal
• D. Circulating loop

Answer: (A)

Even-numbered interstates are designated for routes that run primarily east–west. When you see a two-digit even number, expect a highway that moves mostly left to right across the map. This numbering helps travelers know direction: examples like I-10, I-40, and I-90 run across the country in an east–west orientation. In contrast, odd-numbered interstates run largely north–south, and options like diagonal or circulating loop don’t reflect this system.

Even-numbered interstates are designated for routes that run primarily east–west. When you see a two-digit even number, expect a highway that moves mostly left to right across the map. This numbering helps travelers know direction: examples like I-10, I-40, and I-90 run across the country in an east–west orientation. In contrast, odd-numbered interstates run largely north–south, and options like diagonal or circulating loop don’t reflect this system.