The mixture of milk and water is 32 liters. If we mix 40% of the milk, the quantity of the mixture is 40 liters. What is the initial quantity of water?

The question is unclear due to garbled phrasing. "If we mix 40% of the milk" could mean: (1) Add milk equal to 40% of initial milk quantity, (2) Replace 40% of mixture with milk, or (3) The final mixture is 40% milk. Under interpretation (1): Initial milk = x, water = y, x + y = 32. Adding 0.4x milk gives total 32 + 0.4x = 40, so 0.4x = 8, x = 20, y = 12. This matches option A. However, the wording is ambiguous and other interpretations could yield different answers.