Question

Leo estimates that a package weighs 27 pounds. The postal clerk weighs it and finds it weighs 20 pounds. What is the percent error in Leo's estimate?

Answer 1

Answer: 35%

Step-by-step explanation:

Given

Weight measured by Leo $W_1=27\ pounds$

Weight measured by the clerk $W_2=20\ pounds$

Percentage error is

$\Rightarrow \%\ \text{error}=\dfrac{\text{False value}-\text{Correct value}}{\text{Correct value}}\times 100$

Putting values

$\Rightarrow \%\ \text{error}=\dfrac{27-20}{20}\times 100=35\%$