Question on: WAEC Mathematics - 1992
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%
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Correct Option: A
Error = 4.25 - 4.10 = 0.15
% error = \(\frac{0.15}{4.25} \times 100%\)
= \(\frac{15}{\frac{17}{4}} = \frac{15 \times 4}{17}\)
= \(3\frac{9}{17} %\)
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