ArithmeticQuestion 362 of 550

A car's speed is 54 km/h. What is it in metres per second?

  1. 5.4 m/s
  2. 54 m/s
  3. 15 m/s
  4. 20 m/s
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Correct answer: 15 m/s

54 km = 54000 m and 1 hour = 3600 s. Speed = 54000 ÷ 3600 = 15 m/s.

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Questions last reviewed: 21 October 2026