Correct Answer: 5 lit
Explanation:
Step 1: Analyze Jar A's initial contents
Step 2: Let milk and water in Jar B be M and W respectively
Step 3: After pouring Jar B into A, the new total = 36 + 20 = 56 litres
Step 4: Set up equations using values from both jars
Answer: 5 litres
The quantity of water in Jar B was 5 litres.
This is a classic mixture problem involving the addition of two different mixtures and analyzing the resulting ratio. It tests your ability to apply ratio logic and algebra together — a common theme in competitive exams and interviews.
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