The length of a piece of stick is 1.75m. A girl measured it as 1.80m....
MATHEMATICS
WAEC 2011
The length of a piece of stick is 1.75m. A girl measured it as 1.80m. Find the percentage error
- A. \(\frac{28}{7}\)%
- B. \(\frac{29}{7}\)%
- C. 5%
- D. \(\frac{20}{7}\)%
Correct Answer: D. \(\frac{20}{7}\)%
Explanation
Error = 1.80m - 1.75m = 0.05m
%error = \(\frac{\text{error}}{\text{true measurement}}\) x 100%
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