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. (b) If town C is 5 hours ahead of town A, find the longitude marked X.

- A. 25°E
- B. 75°E
- C. 50°E
- D. 50°W
Verified working — step 1
Time difference = 5 hours.The 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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