Multiple choice general knowledge math & puzzles A car traveled 258 miles in 6 hours. What was the car's average speed? 34 m.p.h. 40 m.p.h. 43 m.p.h 55 m.p.h. Reveal answer Fill a bubble to check yourself C Correct answer Explanation Average speed is calculated by dividing total distance by total time. 258 miles divided by 6 hours equals 43 miles per hour. The other options are incorrect mathematical results of this division.