Question

The percent that represents the unshaded region in the figure.

• A. $75\%$
• B. $50\%$
• C. $40\%$
• D. $60\%$

Answer 1

The correct option is C

$40\%$

The explanation for the correct option.

From the figure, It is observed that,

Total number of the square block $=10\times 10=100$

Out of $100$ square blocks, $60$ blocks are shaded.

$$\begin{gathered} \therefore \mathrm{Number}\mathrm{of}\mathrm{unshaded}\mathrm{parts}=100-60 \\ \Rightarrow =40 \end{gathered}$$

So, the percentage of unshaded parts is computed as,

$\Rightarrow \frac{40}{100}\times 100=40\%$

Hence, the option $\left(C\right)$ is correct.