Fruit tea

Tea contains 7% of fruit components and 12% of sugar in this component. How many percents of sugar is represented in the whole tea?

Correct answer:

p =  0.84 %

Step-by-step explanation:

$$\begin{gathered} q_1={\displaystyle \frac{7}{100}}=0.07 \\ {q}_2={\displaystyle \frac{12}{100}}={\displaystyle \frac{3}{25}}=0.12 \\ q=q_1\cdot q_2=0.07\cdot 0.12={\displaystyle \frac{21}{2500}}=0.0084 \\ p=100\cdot q=100\cdot 0.0084={\displaystyle \frac{21}{25}}={\displaystyle \frac{21}{25}}\mathrm{\%}=0.84\mathrm{\%} \end{gathered}$$

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