A man is facing west. He turns 90° clockwise, then 180° counterclockwise, then 90° clockwise again. Which direction is he facing now?
Correct answer: B. South
- A. North
- B. South
- C. East
- D. West
Explanation
The man starts facing West. A 90° clockwise turn from West points him North. Then, a 180° counterclockwise turn from North points him South. Finally, another 90° clockwise turn from South results in facing South again. Therefore, he ends up facing South. The other directions are incorrect because they result from miscalculating the sequence or direction of the turns.
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Logical problems present several conditions about people, objects, events or choices and require their possible arrangements to be tested. They cover constraint-based reasoning, rankings, matching, grouping, scheduling and elimination, with attention to the difference between a complete solution and a possibility that merely satisfies one condition.
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