Question

When mixing paint at the local hardware store, the mixture has to have 3 cups of color for every 2 gallons of paint. If a customer ordered 10 gallons of blue paint, how many cups of blue paint is needed?

Answer 1

$\begin{gathered} At\text{ hardware store}\Rightarrow\text{3 cups of color for 2 gallon of paint} \\ so,\text{ for }1\text{ gallon of paint}\Rightarrow\frac{3}{2}=1.5\text{ cups of color} \\ \text{then,} \\ \text{for 10 gallon paints}\Rightarrow1.5\times10=15\text{ cups of blue paints n}eeded \end{gathered}$