[tex]1 \ \%=\frac{1}{100}\\\\ 30 \ \% = \frac{30}{100}=0.3 \\\\ 60 \ \% = 0.6 \\\\ \frac{3}{5}=0.6 \\\\ \frac{ 0.3}{0.6}=\frac{0.6} {x} , \ \ \ \ \ x \neq 0[/tex]
[tex]0.3x=0.6\cdot 0.6\\\\0.3x=0.36 \ \ | \ divide \ both \ sides\ by\ 0.3 \\\\x=1.2[/tex]
