A 40-liter barrel is full of wine which contains 8% of alcohol. 10 liters of the wine is drawn off and replaced by water. What percentage of alcohol is the mixture?
1 Answer
Jun 10, 2018
Explanation:
Lets firstly find the
That is 3.2 litres worth of alcohol in the 40-litre barrel.
Then 10 litres of wine is drawn and replaced by water. Here we find the alcohol percentage in 10 litres of the wine:
So take this value away from the original of 3.2 litres:
To find the percentage of alcohol in the 40-litre barrel: