Question : From a cask of milk containing 64 litres, 8 litres are drawn out and the cask is filled up with water. If the same process is repeated a second, then a third time, what will be the proportion of milk to water in the resulting mixture?
Option 1: 343 : 179
Option 2: 333 : 169
Option 3: 443 : 179
Option 4: 343 : 169
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Correct Answer: 343 : 169
Solution :
The amount replaced by water each time is 8 litres.
The amount of milk = Original amount
So, the amount of milk
Amount of water
So, the required ratio
Hence, the correct answer is 343 : 169.
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