P is heavier than Q. R is lighter than Q. S is heavier than P. Who is the lightest?
Correct answer: C. R
- A. P
- B. Q
- C. R
- D. S
Explanation
The chain gives R lighter than Q, Q lighter than P and P lighter than S, so the order from lightest is R, Q, P, S. Building one line and inserting each new name as its clue is read keeps the ordering straight. R sits at the bottom of that line.
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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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