A trader gave a change of # 540.00 instead of # 570.00 to a customer. Caculate the percentage error.
A
5\(\frac{5}{19}\)%
B
5\(\frac{5}{9}\)%
C
5\(\frac{7}{19}\)%
D
5\(\frac{7}{9}\)%
Verified Correct Answer: A.
Step-by-Step Mathematical Solution
% error = \(\frac{\text{Error}}{\text{Actual value}}\) x 100%
Error = #570 - #540 = #30
% error = \(\frac{30}{570}\) x 100%
= \(\frac{100}{19}\)% = 5\(\frac{5}{19}\)%
Source: Myschool Past Questions Archive (Record #71772)