Question

A mixture of $24$ litres contains $18$litres of pure milk. Find the quantity of pure milk in $32$ litres of the mixture.

Answer 1

Given that

A mixture of $24$ litres contains $18$litres of pure milk.

Let the mixture of $32$ litres contains $x$ litres of pure milk.

We have

$$\begin{gathered} 24:18=32:x \\ 24x=18\times 32 \\ x=\frac{576}{24} \\ x=24 \end{gathered}$$

Hence the mixture of $32$ litres contains $24$ litres of pure milk.