Answer:
Total amount of skim milk needed to be added = 0.83 liters
Step-by-step explanation:
Required fat in the resultant milk = 2%
Current amount of fat in the milk = 3.5%
[tex]\text{Amount of base milk in the whole milk which is to be prepared = }\frac{2}{3.5}\\\\=0.57[/tex]
So, 1 - 0.57 = 0.43 liters of skim milk to be added per liter to make the quantity of fat 2% in the whole milk.
Quantity of milk present = 2 liters
So, total amount of skim milk needed to be added = 2 × 0.43
= 0.83 liters