A bricklayer measured the length of a wall and obtained 4.10m. If the actual length of the wall is 4.25m, find his percentage error.
A
3 9/17%
B
3 27/41%
C
15%
D
35 5/17%
E
36 24/41%
Verified Correct Answer: A.
Step-by-Step Mathematical Solution
Error = 4.25 - 4.10 = 0.15
% error = \(\frac{0.15}{4.25} \times 100%\)
= \(\frac{15}{\frac{17}{4}} = \frac{15 \times 4}{17}\)
= \(3\frac{9}{17} %\)
Source: Myschool Past Questions Archive (Record #23143)