alleryWhich collection is NOT a well-defined set?
ACollection of ten most talented writers of India
BCollection of all natural numbers less than 100
CCollection of all months beginning with letter J
DCollection of all even integers
Answer & Solution
Correct answer: A. Collection of ten most talented writers of India
'Ten most talented writers' depends on subjective judgment — not well-defined.
The other three have unambiguous membership criteria (January/June/July; even integers; naturals < 100).
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