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?

Result

a =  5.8 g

Solution:

m=5 kg=5⋅ 1000 g=5000 g q=1.16/1000=2925000≐0.0012  a=m⋅ q=5000⋅ 0.0012=295=5.8 gm=5 \ kg=5 \cdot \ 1000 \ g=5000 \ g \ \\ q=1.16/1000=\dfrac{ 29 }{ 25000 } \doteq 0.0012 \ \\ \ \\ a=m \cdot \ q=5000 \cdot \ 0.0012=\dfrac{ 29 }{ 5 }=5.8 \ \text{g}

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