A contains 55 litres of milk, from this container 11 litres of milk was taken out and replaced by water. This process is repeated further two times. How much milk is now contained by the container ?
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26.16 Liters
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28.84 Liters
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26.84 Liters
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28.16 Liters
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None of these
D
Correct answer
Explanation
Starting with 55 litres of milk, each operation removes 11 litres (which is 11/55 = 1/5 of the mixture) and replaces it with water. After each operation, only 4/5 of the milk remains. After 3 operations: 55 × (4/5)^3 = 55 × 64/125 = 28.16 litres. This uses the formula for dilution after repeated replacement.