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An airplane flies 240 NM in 2 hours 30 minutes. What is the groundspeed?

  1. 96 knots
  2. 90 knots
  3. 100 knots
  4. 120 knots
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Correct answer: 96 knots

Groundspeed is distance divided by time. Two hundred forty divided by 2.5 is 96 knots.

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 16: Navigation — Basic Calculations, page 398

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Questions last reviewed: 18 October 2026