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Question 1:
In a mixture of 45 litres, the ratio of acid to base is 4 : 1. How much base must be added to make the mixture ratio 3 :2?
A. 12 litres
B. 15 litres
Feedback Base = 9 litres
Acid = 9 litres
To make the ratio of acid : base as 3 : 2,
15 litres of base must be added.
C. 30 litres
D. 42 litres

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