If n of S is a natural number, S is a:
AFixed set
BFilled set
CFormal set
DFinite set
Answer & Solution
Correct answer: D. Finite set
1. Counting the elements gives a number.
2. A countable total means the set stops.
3. If n of S is a natural number, then S is a non-empty finite set.
4. So the answer is a finite set.
_Source: NCERT Class XI Mathematics, Ch 1 'Sets'_
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