If 80 litres of milk solution has 60% milk in it, then how much milk should be added to make milk 80% in the solution?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 80 litres
Initially Milk = 80 × 60% = 48 litres
and Water = 80 × 40% = 32 litres
Now, milk becomes 80% of the solution
then water remains as same as before, 20 % = 32 litres
80% = (32/20) × 80 = 128 litres
Hence, milk should be added = 128 - 48 = 80 litres