B = {4, 5}, A = {1, 2, 3, 4}. B is which set of A?
- Not a subset of A
- Subset of A
- Proper subset of A
- 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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