A container of 50 liters was full of milk. 5 liters liquid drawn off and replaced by water and this process is repeated two times more. Find quantity of milk in mixture now (in liters).
Answer & explanation
Correct answer: option 2
We have,
A vessel has 50 liters of milk.
5 liters of water is drawn out from this vessel and replaced by milk.
This process was repeated further two times.
Amount of milk left after 3 operations = 50 [1 – (\(\frac{5}{50}\))]3
= 50 × \(\frac{9}{10}\) × \(\frac{9}{10}\) × \(\frac{9}{10}\) = 36.45