Question

A number 4.0 is wrongly read as 4.48; find the percentage error

Answer 1

We will use the percentage error formula to determine the percentage error.

Since, the number is 4.0 and it is wrongly read as 4.48

Percentage error = $\frac{measured value - accepted value}{accepted value} \times 100$

Since, here measured value = 4.48

accepted value = 4

So, percentage error = $\frac{4.48-4.0}{4.0} \times 100$

= $\frac{0.8}{4.0} \times 100$

= 20 %

Therefore, the percentage error in this case is 20%.