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A 300ml mixture of milk and water is 80% pure, how many ml of milk are in the mixture?

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A 300ml mixture of milk and water is 80% pure, how many ml of milk are in the mixture? Answer: 240

80% of the 300 ml mixture is milk, so the mixture contains 240 ml of milk and 60 ml of water.

Question context

This question is part of 📏 Arithmetic Aptitude within the broader 🧠 Aptitude Mastery subject and appears in the SPSC – Sindh Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.