A man faces West, turns 45° clockwise, then 180° clockwise, and finally 270° anti-clockwise. Which direction is he facing now?

Difficulty: Easy

Correct Answer: South - West

Explanation:


Introduction / Context:
This is the same cumulative-rotation style as earlier, but with a different wording. We will compute a net heading by adding/subtracting signed turns and mapping to compass points.



Given Data / Assumptions:

  • Initial facing: West (take as 180°).
  • Clockwise turns: +45° and +180°.
  • Anti-clockwise turn: −270°.


Concept / Approach:
Angle arithmetic with normalization into [0°, 360°). Then identify quadrant and standard bearing names.



Step-by-Step Solution:
Start: 180°.After +45° → 225°.After +180° → 405° → 45° after modulo 360.After −270° → 45° − 270° = −225° → +360° = 135°.135° lies between South (90°) and West (180°): South-West.



Verification / Alternative check:
Total rotation = +45 + 180 − 270 = −45°. From West (180°), −45° → 135° = South-West. Same outcome.



Why Other Options Are Wrong:
West (180°), South (90°), North-West (~315°) do not match the computed 135° final bearing.



Common Pitfalls:
Omitting angle wraparound or confusing the sign of anti-clockwise rotation.



Final Answer:
South - West

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