Paper 1 · Logical Reasoning
UGC NET December 2021 June 2022 (29.09.2022) Shift-II
If 'Some men are vegetarians' is given as false, which of the following can be inferred to be true from it?
- All men are vegetarians
- No men are vegetarians
- Some men are not vegetarians
- All non-vegetarians are men
A1, 2 & 3 only
B2, 3 & 4 only
C2 & 3 only ✓ Correct
D3 only
Correct answer: (C) 2 & 3 only — The answer is 2 and 3.
Explanation
★The answer is 2 and 3.
★If 'Some men are vegetarians' is false, then its contradictory 'No men are vegetarians' must be true, which is item 2.
★From 'No men are vegetarians' it follows that 'Some men are not vegetarians' is true, which is item 3.
★The claim that all men are vegetarians contradicts the falsity given, so item 1 is excluded.
★The statement about all non-vegetarians being men does not follow, so item 4 is excluded.
★So statements 2 and 3 can be inferred.
★So the answer is 2 and 3.
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