NECO Mathematics 2025 Objective — Question 12
Question 12 of 60 from the National Examinations Council (NECO) Mathematics 2025 Objective paper, with the correct answer and a full explanation.
Advertisement
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.
Advertisement
Sign up free to unlock
- Score tracking
- Practice history
- Saved questions
- Progress dashboard
- Personalized sessions
- Weak-topic breakdown
…and/or go further with premium services and No Ads.