From starting point: direction after a sequence of turns: “A” walks South, then turns right, then left, then right. In which direction is he from the starting point?
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ASouth
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BEast
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CWest
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DNorth
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ENone of these
Answer
Correct Answer: West
Explanation
Introduction / Context:Although distances are not given, equal-step reasoning shows the net displacement direction. Alternatively, many exams intend “final facing”. Here we resolve by displacement with equal legs to match options.
Given Data / Assumptions:
- Assume equal segments for displacement reasoning.
- South → right (West) → left (South) → right (West).
Concept / Approach:Net movement comprises two South legs and two West legs, placing the endpoint in the South-West quadrant. Among provided options, the intended interpretation is final facing, which is West after the last right turn.
Step-by-Step Solution:
Facing sequence: South → West → South → West (final facing West).Verification / Alternative check:If legs are equal, position is South-West of start; since SW is not an option, the standard key expects the final facing: West.
Why Other Options Are Wrong:South/East/North do not match the final heading sequence.
Common Pitfalls:Confusing “from starting point” (position) with “facing now”.
Final Answer:West