Question

Mixture of milk and water is 2 : 3 in 20 L of mixture, in order to make the ratio of milk and water 1 : 3, what quantity of water should be added to the mixture?

1. 15 L
2. 16 L
3. 14 L
4. 12 L
5. None of these

Answer 1

Correct Answer - Option 4 : 12 L

Given :

Quantity of mixture = 20 L

Ratio of milk and water = 2 : 3

Calculations :

Quantity of milk = (2/5) × 20 = 8 L

Quantity of water in mixture = 20 - 8 = 12 L

Let x L of water be mixed

⇒ 8/(12 + x) = 1/3

⇒ x = 12

∴ 12 L of water should be mixed.