alleryStudents studying in both Class X and Class XI at the same time form a set that is:
AA universal set
BThe empty set
CAn infinite set
DA singleton set
Answer & Solution
Correct answer: B. The empty set
1. Nobody can be in two classes at once.
2. The set has no element at all.
3. It is the empty set.
_Source: syllabus Mathematics, Chapter 1, Sets._
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