OAU Post-UTME Mathematics 2012 Question 12

Question 12

Bearings

If the bearing of a town B from A is 145°, the bearing of A from B is

  1. A.305°
  2. B.325°
  3. C.35°
  4. D.145°
Show the answer and explanation

Answer: B (325°)

Explanation

A back bearing differs by 180°: 145° + 180° = 325°.