Car crash

After a traffic accident, police measured 1.16 permille of alcohol in the driver's blood. What amount of alcohol did the driver have in the blood when about 5 kg of blood circulates in the human body?

Correct answer:

a =  5.8 g

Step-by-step explanation:

$$\begin{gathered} m=5\text{ kg}\to \text{ g}=5\cdot 1000\text{ g}=5000\text{ g } \\ q=1.16\mathrm{/}1000={\displaystyle \frac{29}{25000}}\doteq 0.0012 \\ a=m\cdot q=5000\cdot 0.0012=5.8\text{ g} \end{gathered}$$

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