# Drunk and alcohol

One drunk measured 2.7 ‰ alcohol in the blood, another 1.75 ‰. How many grams of alcohol in the blood they had if they has 6 kg of blood?

Correct result:

a =  16.2 g
b =  10.5 g

#### Solution:

$V=6 \ kg \rightarrow g=6 \cdot \ 1000 \ g=6000 \ g \ \\ \ \\ a=\dfrac{ 2.7 }{ 1000 } \cdot \ V=\dfrac{ 2.7 }{ 1000 } \cdot \ 6000=\dfrac{ 81 }{ 5 }=16.2 \ \text{g}$

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Leave us a comment of this math problem and its solution (i.e. if it is still somewhat unclear...):

Math student
This is incorrect. It should be 162 grams and 105 grams

Matematik
All seems ok, probably you exchange permille vs. percent. With percents, all correct results will be 10 times higher.

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