A notebook of length 15 cm was measured to be 16.8 cm, calculate, correct to
MATHEMATICS
WAEC 2023
A notebook of length 15 cm was measured to be 16.8 cm, calculate, correct to two d.p, the percentage error in the measurement.
- A. 12.00%
- B. 11.71%
- C. 10.71%
- D. 11.21%
Correct Answer: A. 12.00%
Explanation
Error = 16.8 - 15 = 1.8cm
% error = \(\frac{error}{ Actual value}\times 100%\)
= \(\frac{1.8}{ 15}\times100%\)
= \(0.12\times100%\)
= 12.00%
Post an Explanation Or Report an Error
If you see any wrong question or answer, please leave a comment below and we'll take a look. If you doubt why the selected answer is correct or need additional more details? Please drop a comment or Contact us directly. Your email address will not be published. Required fields are marked *