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
\(\frac{20}{7}\)%
Verified Correct Answer: D.
Step-by-Step Mathematical Solution
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%
Source: Myschool Past Questions Archive (Record #36654)