Multiple choice

In a total mixture of 40 litre, the ratio of water to milk is 1 : 3. How much water should be added so that the ratio becomes 1 : 1?

  1. 10 litre

  2. 20 litre

  3. 30 litre

  4. 40 litre
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Initial: 40L, 1:3 ratio means 10L water, 30L milk. To get 1:1, we need 30L water. Added water = 30 - 10 = 20L.

AI explanation

The initial 40 litres contains a ratio of water to milk of 1 to 3, meaning there are 10 litres of water and 30 litres of milk. To make the ratio 1 to 1, the volume of water must equal the volume of milk. You must add 20 litres of water to the initial 10 litres to reach 30 litres.

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