ECZ 2017 · O-Level Paper 1 — Earth Geometry
Town L is on (0°, 30°W) and town K is on (0°, 60°E), as shown in the diagram. If a radio quiz starts at 12 00 hours at L, find the time at which people at K will be listening.
- A. 06 00 hrs
- B. 18 00 hrs
- C. 16 00 hrs
- D. 08 00 hrs
Verified working — step 1
K lies 90° of longitude east of L (30°W to 60°E). Since 15° = 1 hour, K is 90 ÷ 15 = 6 hours ahead: 12 00 + 6 = …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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