WAEC Mathematics 2018 Objective — Question 26
Question 26 of 50 from the West African Examinations Council (WAEC) Mathematics 2018 Objective paper, with the correct answer and a full explanation.
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The mean of 1, 3, 5, 7 and x is 4. Find the value of x.
- A. 2
- B. 4Correct
- C. 6
- D. 8
Explanation
(1+3+5+7+x)/5=4 → 16+x=20 → x=4.
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