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JAMB Mathematics 1985 Question 32

Question 32

Bearings

The bearing of a bird on a tree from a hunter on the ground is N72°E. What is the bearing of the hunter from the bird?

  1. A.S18°W
  2. B.S72°W
  3. C.S72°E
  4. D.S27°E
  5. E.S27° W.
Show the answer and explanation

Answer: B (S72°W)

Explanation

A back bearing points the opposite way: north becomes south and east becomes west, with the same angle. So N72°E becomes S72°W.