Strawberry sugar ratio

An old cookbook states that 250g of gelling sugar should be added to 1.25kg of strawberries when preparing strawberry jam. What is the sugar-to-strawberry ratio?

Final Answer:

r =  1:5

Step-by-step explanation:

$$\begin{gathered} m_1=250\text{g}\to \text{kg}=250:1000\text{kg}=0.25\text{kg} \\ {m}_2=1.25\text{kg} \\ r=\frac{m_1}{m_2}=\frac{0.25}{1.25}=\frac{1}{5}=0.2=1:5 \end{gathered}$$

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