SOLUTION: How many litres of water must be added to 10 litres of 30% alcohol in order to produce 50litres of 10% alcohol?

Question 990877: How many litres of water must be added to 10 litres of 30% alcohol in order to produce 50litres of 10% alcohol?
Found 2 solutions by ikleyn, Alan3354:
Answer by ikleyn(52784) (Show Source): You can put this solution on YOUR website!
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Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
How many litres of water must be added to 10 litres of 30% alcohol in order to produce 50litres of 10% alcohol?
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You add 40 liters to get 50 liters.
10*30 + 40*0 = 50C
Concentration = 6% tho.
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To get 10% :
10*30 + L*0 = (10+L)*10
300 = 10L + 100
L = 20
--> 30 liters of 10%

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