Answer B.20%
[tex]\bold{3.15÷15.75}[/tex]
[tex]\bold{\frac{3.15}{15.75}}[/tex]
[tex]\bold{\frac{315}{1575}}[/tex]
[tex]\bold{ \frac{1}{5} }[/tex]
[tex]\bold{Convert\:to\:Percentage}[/tex]
[tex]\bold{ \frac{1}{5} }[/tex]
[tex]\bold{ \frac{1}{5} \times \frac{20}{20} }[/tex]
[tex]\bold{\frac{20}{5 \times 20} }[/tex]
[tex]\bold{ \frac{20}{100}}[/tex]
Answer: 20