Paper 1 · Logical Reasoning
UGC NET December 2021 June 2022 (21.09.2022) Shift-II
If the statement 'Some plants are carnivorous' is given as true, then which of the following could be immediately inferred from it?
- 'All plants are carnivorous' is undetermined
- 'All plants are carnivorous' is true
- 'Some plants are not carnivorous' is undetermined
- 'No plants are carnivorous' is false
A2, 3 and 4 only
B2 and 3 only
C2 and 4 only
D1, 3 and 4 only ✓ Correct
Correct answer: (D) 1, 3 and 4 only — The answer is 1, 3 and 4.
Explanation
★The answer is 1, 3 and 4.
★If 'Some plants are carnivorous' is true, its contradictory 'No plants are carnivorous' is false, which is item 4.
★The truth of the particular affirmative leaves 'All plants are carnivorous' undetermined, which is item 1.
★It also leaves 'Some plants are not carnivorous' undetermined, which is item 3.
★So it does not make 'All plants are carnivorous' true, and item 2 is excluded.
★So the immediate inferences are the first, third and fourth.
★So the answer is 1, 3 and 4.
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