Quantitative Aptitude • Time, Speed & WorkEasy
A car covers 504 km in 2 hours. What is its speed in metres per second?
A. 907.2 m/s
B. 70 m/s✓ Correct Answer
C. 252 m/s
D. 140 m/s
💡 Solution & Explanation
Speed = distance ÷ time = 504 ÷ 2 = 252 km/h. To change km/h into m/s, multiply by 5/18 (because 1 km = 1,000 m and 1 hour = 3,600 seconds). So 252 × 5/18 = 70 m/s.
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