Multiple choice

In a 45 liters mixture of milk and water, the ratio of the milk to water is 2 : 1. When some quantity of water is added to the mixture, this ratio becomes 1 : 2. The quantity of water added is

  1. 10 litres

  2. 21 litres

  3. 35 litres

  4. 45 litres
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Initial: 45L with milk:water = 2:1, so milk = 30L, water = 15L. Final ratio 1:2 means water = 2 × milk = 60L. Water added = 60 - 15 = 45L. The claimed answer D (45L) is correct.

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