From 90 liters of 4: 5 milk-water mixture, 15 liters are taken out and replaced by same amount of water. This process is repeated once more. Now, 9 liters of the mixture is taken out and replaced by same amount of milk. The amount of water at the end of third cycle is how much percent of the amount of water at the end of second cycle?
90 L = 40 L milk
= 50 L milk
15 L = 1/6 taken out
First process = 100/3 milk, 125/3 +15 = 170/3 water
Second process milk; L water
Third process = water L; milk =