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%
Verified Correct Answer: A.
Step-by-Step Mathematical Solution
Error = 16.8 - 15 = 1.8cm
% error = \(\frac{error}{ Actual value}\times 100%\)
= \(\frac{1.8}{ 15}\times100%\)
= \(0.12\times100%\)
= 12.00%
Source: WAEC / JAMB / NECO Classroom Archive (Record #69174)