Question

A number 75 is misread as 57. Find the reading error percentage.

• A. 32%
• B. 33%
• C. 27%
• D. 24%

Answer 1

The correct option is D 24%

Number 75 is misread as 57.
So, reading error = 75 - 57 = 18

Now, for reading error percentage,
$\text{Reading error percentage}=\frac{\text{Reading error}}{\text{Original number}}\times 100⟹\frac{18}{75}\times 100=24\%$

Hence, option 'd' is correct.