ECZ 2023 · O-Level Paper 1 — Earth Geometry
The diagram shows two towns A and B on the equator. A is on longitude 30°W and B is on longitude X. A ship sailed due east from A to B at an average speed of 450 knots. Find the time it took the ship to travel from A to B.
- A. 3 hours
- B. 9 hours
- C. 60 hours
- D. 6 hours
Verified working — step 1
On the equator, 1° of longitude = 60 nautical miles - and a knot is 1 nautical mile per hour.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.
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