WAEC Mathematics 2022 Objective — Question 12
Question 12 of 50 from the West African Examinations Council (WAEC) Mathematics 2022 Objective paper, with the correct answer and a full explanation.
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The length of a piece of stick is 1.75m. A boy measured it as 1.80m. Find the percentage error.
- A. 5 4/7%
- B. 2 6/7%Correct
- C. 2 7/9%
- D. 4 7/9%
Explanation
% error = |actual−measured|/actual × 100% = |1.75−1.80|/1.75 × 100% = 0.05/1.75 × 100% = 2 6/7%.
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