ECZ 2021 · O-Level Paper 1 — Earth Geometry
The positions of three towns A, B and C on the earth’s surface are shown in the diagram below. (a) A plane flying a distance of 4 500 nautical miles directly from town A to B takes 5 hours. Find the speed of the plane in knots.
- A. 900 knots
- B. 4 500 knots
- C. 22 500 knots
- D. 90 knots
Verified working — step 1
Speed = distancetimeThe full step-by-step working and final answer 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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