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How many subsets does the set with elements 1 and 2 have?
ASeven
BFour
CThree
DEight
Answer & Solution
Correct answer: B. Four
1. The empty set and the whole set both count.
2. So do the two single-element sets.
3. There are four subsets.
_Source: NCERT Class 11 Mathematics, Chapter 1, Sets._
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