Answer:
[tex]\huge\boxed{\sf 30 \%}[/tex]
Step-by-step explanation:
Total blocks of large rectangle = 20
Shaded region = 6
So, shaded fraction:
[tex]\displaystyle = \frac{6}{20}[/tex]
Multiply numerator and denominator by 5
[tex]\displaystyle = \frac{6 \times 5}{20 \times 5} \\\\= \frac{30}{100} \\\\Percent \ means \ 'out \ of \ 100'\\\\= 30 \%\\\\\rule[225]{225}{2}[/tex]
