1.

You are given a mixture of 18 litres, where the ratio of milk and water is 3 ∶ 2. If 3 litres of this mixture is replaced by 3 litres of milk, then what will be the ratio of milk and water in the newly formed mixture?1). 12 ∶ 32). 8 ∶ 53). 2 ∶ 14). 1 ∶ 1

Answer»

Total quantity of MIXTURE = 18 liters and 3 LITRES of mixture is removed from the container

Now, you are left with only 15 litres of mixture in 3 ? 2 ratio.

⇒ Milk in 15 litres mix = 15 × 3/(2 + 3) = 9 litres

⇒ Water in 15 litres mix = 15 × 2/(2 + 3) = 6 litres

We add 3 litres milk to this. 

⇒ Milk in new mix is = 9 litres + 3 litres = 12 litres

⇒ Water = 6 litres

∴ Ratio of milk ? water = 12 ? 6 = 2 ? 1


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