Question

How many of the shapes must be shaded so that $\frac{2}{5}$ of the figure is unshaded ?

• A. $5$
• B. $10$
• C. $15$
• D. $20$

Answer 1

The correct option is C $15$

Total number of hexagons $=25$

$\frac{2}{5}\times 25=15$

$\therefore$ total of $15$ hexagons must be shaded.