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Instructions
Each of the following questions is based on a set of propositions I-IV. Select the best answer to each question.
I. All Ps are Q.
II. Some Ps are not Q.
III. Some, but not all, Ps are Q.
IV. No Ps are Q.
Question 119
Considered only by themselves, which of the following pairs of statements might either both be true or both be false ?
Solution
Looking at each statement individually:
Option A: I and II cannot be both true, and hence option A can be eliminated as an option.
Option B: These two statements can be both true and both false.
Option C: These two directly contradict each other and hence can not be both true.
Option D: These are polar opposite statements and can not be both true.
