How much salt is there in a 50 gallons of a 3% salt solution ?

1 answer:

3 0

$\bf \begin{array}{|c|ll}
\cline{1-1}
\textit{a\% of b}\\
\cline{1-1}
\\
\left( \cfrac{a}{100} \right)\cdot b
\\\\
\cline{1-1}
\end{array}~\hspace{5em}\stackrel{\textit{3\% of 50}}{\left( \cfrac{3}{100} \right)50}\implies 1.5~~gallons$

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