Faulty direction pole (rotated 90° clockwise): A road-crossing pole rotated so the pointer that originally showed East now points South. Sita followed the pointer she believed was West. What actual direction was she travelling?

Introduction / Context:
A rotated signpost changes the real-world directions of the labeled pointers. We must map label → actual direction after rotation.

Given Data / Assumptions:

• Pointer that used to indicate East now points South ⇒ the whole pole rotated 90° clockwise.
• Rotation effect: N→E, E→S, S→W, W→N (actual).

Concept / Approach:
Apply a 90° clockwise rotation to the compass labels to get actual directions.

Step-by-Step Solution:

Verification / Alternative check:
Check one mapping: label East → actual South (given) confirms 90° clockwise.

Why Other Options Are Wrong:
East/South/West correspond to other labels under the same rotation, not the West label.

Common Pitfalls:
Rotating the traveller instead of the signpost, or using counter-clockwise rotation.

Final Answer:
North