Car crash

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

Correct answer:

a =  5.8 g

Step-by-step explanation:

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

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