A container has 20 L of milk. 4 L of milk is replaced with an equal quantity of water. What was will be the final quantity of milk in the container if the process is repeated once again?
### Given Solution
Original quantity of milk = 20 L
After taking out 4 L and replacing it with water, milk left = 16L.
When repeating the process, after taking out 4 L of this mixture
Quantity of milk taken out = 4 x (16/ 20) =3.2 L
Thus, the required quantity of milk left = 32 – 2.2 L = 28.8 L
> 28.8L ? It does not seem right.