ECZ 2025 · GCE Paper 1 — Earth Geometry

The diagram shows the positions of three towns A, B and C on the earth's surface. A plane flying due south from A to B at 900 knots takes 7 hours. Find the difference in latitude between A and B.

Diagram for ECZ 2025 · GCE Paper 1
  • A. 15°
  • B. 7°
  • C. 6300°
  • D. 105°

Verified working — step 1

Two facts: a knot is 1 nautical mile per hour, and along a north-south line 1° of latitude = 60 nautical miles.

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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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