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?
Answer & explanation
Correct answer: option 4
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.