Math Problem Statement
A mixture of 50 litres of milk and water contains 12% water. If an equal quantity of water is added twice to make it 20% in the new mixture, then how many litres of water was added each time?
Solution
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Math Problem Analysis
Mathematical Concepts
Algebra
Percentages
Proportions
Formulas
Percentage formula: (part/whole) * 100
Equation of proportion: (quantity of water)/(total mixture) = percentage
Theorems
Basic Proportionality Theorem
Suitable Grade Level
Grades 8-10
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