What is the speed limit on a highway?

• A. 45
• B. 70
• C. 55
• D. 15

Answer: (C)

Speed limits indicate the maximum legal speed for that road under normal conditions. On highways, the typical limit used in this context is fifty-five miles per hour, so driving at or below that speed is permitted unless signs show a different limit. The limit exists to balance safe stopping distances, merging traffic, and overall road conditions. Always follow the posted sign, and adjust your speed for weather, visibility, and traffic. The other speeds reflect different road types—lower limits on city streets or rural roads, higher limits on some highways—so fifty-five miles per hour is the standard answer in this scenario.