The length of a piece of stick is 1.75m. A girl measured it as 1.80m. Find the percentage error
- \(\frac{28}{7}\)%
- \(\frac{29}{7}\)%
- 5%
-
\(\frac{20}{7}\)%
The correct answer is: D
Explanation
Error = 1.80m - 1.75m = 0.05m
%error = \(\frac{\text{error}}{\text{true measurement}}\) x 100%
%error = \(\frac{ 0.05}{ 1.75}\times100\)
%error = \(\frac{20}{7}\)% or 2.86%