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B = {4, 5}, A = {1, 2, 3, 4}. B is which set of A?
  1. Not a subset of A
  2. Subset of A
  3. Proper subset of A
  4. None of these
Explanation

A subset must have all its elements in set A.

B = {4, 5} contains 5, which is not in A.

Therefore, B is not a subset of A.


Last verified on 10-07-2026

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