What is the typical speed limit on an interstate highway?
Quick Answer
Interstate highway speed limits vary by state: most are 65-70 mph. Texas has some interstates posted at 75-85 mph. Urban interstates often have lower limits of 55-65 mph. Always follow the posted limit. The minimum speed on most interstates is 40-50 mph.
Explanation
Interstate highway speed limits vary by state: most are 65-70 mph. Texas has some interstates posted at 75-85 mph. Urban interstates often have lower limits of 55-65 mph. Always follow the posted limit. The minimum speed on most interstates is 40-50 mph. Understanding this concept is essential for safe driving and will help you answer similar questions on the DMV written test.
Why This Matters on the DMV Test
Questions about Speed Limits are among the most common on the permit test. Knowing the correct answer helps you pass your exam and stay safe on the road. Most states require a score of 70–83% to pass.
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