Paper 1 · Logical Reasoning
UGC NET December 2021 June 2022 (11.10.2022) Shift-II
Which of the following statements are sub-contraries?
- All nurses are caring human beings
- No nurses are caring human beings
- Some nurses are caring human beings
- Some nurses are not caring human beings
A1 & 2 only
B1 & 4 only
C2 & 3 only
D3 & 4 only ✓ Correct
Correct answer: (D) 3 & 4 only — The answer is 3 and 4.
Explanation
★The answer is 3 and 4.
★Sub-contraries are the particular affirmative and the particular negative.
★The particular affirmative is 'Some nurses are caring', which is item 3.
★The particular negative is 'Some nurses are not caring', which is item 4.
★These two can both be true but cannot both be false, which is the mark of sub-contraries.
★The universal statements 1 and 2 are contraries, not sub-contraries.
★So the answer is 3 and 4.
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