NABTEB Mathematics 2025 Objective — Question 12
Question 12 of 60 from the National Business and Technical Examinations Board (NABTEB) Mathematics 2025 Objective paper, with the correct answer and a full explanation.
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Given A={2,3,5,7,11,13,17} and B={1,2,3,4,5,6,7,8,9,10}, find n(A union B).
- A. 12
- B. 13Correct
- C. 14
Explanation
A union B = {1,2,3,4,5,6,7,8,9,10,11,13,17}, which has 13 elements.
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