Question

In a fruit juice recipethe ratio by volume of orange juice to pineapple juice to apple juice is 2:7:5, How many liters of pineapple juice are needed to prepare 3 liters of fruit juice?

Answer 1

isRatio: 2:7:5

• Orange juice: 2x

,

• Pineapple juice: 7x

,

• Apple juice: 5x

Total fruit juice: 3L

$\begin{gathered} 2x+7x+5x=3 \\ 14x=3 \\ x=\frac{3}{14} \end{gathered}$

To know how many liters of pineapple juice (PJ)...

$\begin{gathered} PJ=7x=7\times\frac{3}{14}=\frac{3}{2} \\ PJ=\frac{3}{2}\approx1.5L \end{gathered}$

Answer: 1.5L of pineapple juice are needed to prepare 3L of fruit juice.