Answer:
The answer is
20 %
Explanation:
The percentage error of a certain measurement can be found by using the formula
[tex]P(\%) = \frac{error}{actual \: \: number} \times 100\% \\ [/tex]
From the question
actual volume = 35 mg
error = 35 - 28 = 7
The percentage error is
[tex]P(\%) = \frac{7}{35} \times 100 \\ = \frac{1}{5} \times 100 \\ = 20[/tex]
We have the final answer as
20 %
Hope this helps you
