CA Foundation · Quantitative Aptitude · Sets, Relations and Functions, Limits and Continuity
If Set A = {2, 4, 6, 8} and Set B = {4, 8, 12, 16}, then A ∩ B (intersection of A and B) contains how many elements?
A ∩ B contains 2 elements: 4 and 8. These are the only values that appear in both Set A and Set B simultaneously.
- A1
- B2Correct
- C3
- D4
Explanation
The intersection A ∩ B contains only elements that are present in both sets. Element 4 is in both A and B. Element 8 is in both A and B. No other elements appear in both sets. Therefore, A ∩ B = {4, 8}, which has 2 elements.
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