ECZ 2025 · O-Level Paper 1 — Earth Geometry

The diagram shows the positions of three points P, Q and R on the earth's surface. A plane flying at a speed of 650 knots takes 6 hours to fly from P to R. Find the distance, in nautical miles, between P and R.

Diagram for ECZ 2025 · O-Level Paper 1
  • A. 390 nautical miles
  • B. 108.3 nautical miles
  • C. 3900 nautical miles
  • D. 3250 nautical miles

Verified working — step 1

A knot is 1 nautical mile per hour, so a distance in nautical miles is speed × time.

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Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.

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