Mixtures & Alligation · Question 13 · Hard
Mixtures & Alligation question 13
A jar is full of a liquid containing 40% alcohol. Part of it is replaced by a liquid containing 19% alcohol, and the alcohol content becomes 26%. What fraction of the original liquid was replaced?
- 1/3
- 2/5
- 3/5
- 2/3
Answer and explanation
Answer: D. 2/3
Explanation: By alligation, original : replacement = (26 − 19) : (40 − 26) = 7 : 14 = 1 : 2. So 2/3 of the jar was replaced.
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