Question

300% of n = 600

Answer 1

Translate to algebra
3n = 600....solve for n

Answer 2

\(\bf \begin{array}{ccllll}
percentage&quantity\\
\hline\\
300&600\\
100&x
\end{array}\implies \cfrac{300}{100}=\cfrac{600}{x}\)

Answer 3

\(\bf \begin{array}{llll}
percentage&quantity\\
\hline\\
300&600\\
100&n
\end{array}\implies \cfrac{300}{100}=\cfrac{600}{n}\) for that matter =)