ECZ 2014 · O-Level Paper 1 — Earth Geometry

Two places A and B lie on the equator and are 2 820 nautical miles apart. A is on longitude 17°W and B is east of A. Find the longitude of B.

  • A. 30°E
  • B. 64°E
  • C. 30°W
  • D. 47°E

Verified working — step 1

On the equator, 1 nautical mile = 1 MINUTE of arc - convert to degrees, then walk east from 17°W across the zero meridian.

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Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.

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