A container contains 25 litre of milk. From this container, 5 litre of milk is taken out and replaced by water. This process is further repeated two times. How much milk is there in the container now?

12.8 litre

According to the question,

Fraction of milk removed = \(\frac{5}{25}\) = \(\frac{1}{5}\),

Now the quantity of milk left in the container

= 25(1 - \(\frac{1}{5}\))³

= 25 × \(\frac{4}{5}\) × \(\frac{4}{5}\) × \(\frac{4}{5}\)

= 12.8 litres.

Therefore 12.8 litres of milk is left.