ECZ 2018 · GCE Paper 1 — Earth Geometry
The difference in longitude between town A and town B is 105°. B is west of A. A family at A was watching a football match at 16 00 hours. At what time did a family at B watch the same match?
- A. 23 00 hours
- B. 11 00 hours
- C. 09 00 hours
- D. 07 00 hours
Verified working — step 1
Each 15° of longitude is 1 hour of time: 105 ÷ 15 = 7 hours. Places west are BEHIND in time, so B's local time = 16 00 − 7 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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