Chapter 6.4, Problem 20IP

To determine

To find: Percent error.

Answer to Problem 20IP

Percent error is $0.26\%$

Explanation of Solution

Given information:

Calculated number $=385$

Actual number $=384$ .

Percent error $=\frac{A}{O}\times 100$

Where

  $A=$ Absolute value.

  $O=$ Actual value.

From given information

Calculated number $=385$

Actual number $=384$ .

Absolute value = Calculated number $-$ Actual number.

  $\begin{array}{l}\Rightarrow A=385-384\\ \Rightarrow A=1\end{array}$

Therefore,

Percent error $=\frac{1}{384}\times 100$

  $\Rightarrow$ Percent error $=\frac{100}{384}$

  $\Rightarrow$ Percent error $=0.26$

So, Percent error is $0.26\%$ .