Question

Mr. West estimated a mass to be 265g, but upon carefully measuring it, found the actual mass to be 240g. What was the percent error?

Answer 1

The answer is 10.42 %

Explanation:

The percentage error of a certain measurement can be found by using the formula

`P(\%) = (error)/(actual \: \: number) * 100\% \\`

From the question

actual mass = 240 g

error = 265 - 240 = 25

So we have

`p(\%) = (25)/(240) * 100 \\ = 10.41666666...`

We have the final answer as

10.42 %

Hope this helps you