Omar is older than Zain. Zain is older than Rafi. Which conclusion must follow?
Correct answer: A. Omar is older than Rafi.
- A. Omar is older than Rafi.
- B. Rafi is older than Omar.
- C. Omar and Rafi are the same age.
- D. Zain is older than Omar.
Explanation
Age comparison is transitive. If Omar is older than Zain and Zain is older than Rafi, Omar is older than Rafi.
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About Logical Deductions
Logical deductions require conclusions to be drawn from stated facts, conditions and relationships without adding outside information. The work includes handling all, some and none statements, necessary and sufficient conditions, ordering restrictions, true or false conclusions, and the difference between what must be true and what could be true.
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