Paper 1 · Logical Reasoning
UGC NET June 2023 (19.06.2023) Shift-I
Arrange the following group of terms in order of decreasing extension.
- Mammal
- Animal
- Tiger
- Feline
A2, 1, 3, 4
B1, 2, 4, 3
C3, 4, 1, 2
D2, 1, 4, 3 ✓ Correct
Correct answer: (D) 2, 1, 4, 3 — The decreasing-extension order is animal, mammal, feline, tiger, so the answer is 2, 1, 4, 3.
Explanation
★The decreasing-extension order is animal, mammal, feline, tiger, so the answer is 2, 1, 4, 3.
★Extension is the set of things to which a term applies.
★A broader term covers more members and so has greater extension.
★Animal is the widest class here, covering the most members.
★Mammal is narrower than animal, and feline is narrower than mammal.
★Tiger is the narrowest, applying to the fewest members.
★So decreasing extension runs animal, then mammal, then feline, then tiger.
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