Multiple choice

A mixture contains milk and water in the ratio 5 : 3. How much water must be added to 32 litres of this mixture to change the ratio to 5 : 4?

  1. 3 L

  2. 4 L

  3. 2 L

  4. 5 L
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Initial: Milk = 20L, Water = 12L (ratio 5:3). To get ratio 5:4, Milk must stay 20L. New Water = 16L. Added water = 16 - 12 = 4L.

AI explanation

In the 32 liters of the initial mixture, the volume of milk is 5/8 of 32, which is 20 liters, and the volume of water is 12 liters. To change the ratio to 5:4 while keeping the milk volume at 20 liters, the new water volume must be 4/5 of 20, which is 16 liters. Therefore, the amount of water to be added is 16 minus 12, which equals 4 liters.

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