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.

- 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.The full step-by-step working and final answer, plus the video lesson for this topic, are included with Premium — checked against ECZ marking standards.
Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.
Have a different question?
Search it — if it is from a past paper or a school mock, chances are we have it worked out, or one that uses the same method.
Search any past-paper question