Answer
$n=0.025$
Work Step by Step
Use cross products to solve for n.
$\frac{n}{0.6}=\frac{0.05}{12}$ $\longrightarrow$set cross products as equal
$12n=0.6\times0.05$ $\longrightarrow$multiply
$12n=0.030$ $\longrightarrow$multiplication property of equality
$12n\div12=0.30\div12$ $\longrightarrow$divide
$n=0.025$