Multiple choice

A 100 litre mixture contain 10% water and remaining milk. How much water should be added to make 50% water in solution ?

  1. 70 lit

  2. 72 lit

  3. 78 lit

  4. 80 lit
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Initial mixture: 10L water + 90L milk = 100L. For 50% water concentration, water must equal milk. Current milk is 90L, so we need 90L water. Already have 10L, so add 80L more water. Final mixture: 90L water + 90L milk = 180L at 50% concentration.

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