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Q: From a container of 50 litres pure milk, 10 liters is taken out and replaced by 10 liter of water. If this process is repeated three times, then what is the ratio of water and milk finally.
  • A. 7: 16
  • B. 9: 16
  • C. 61 : 64
  • D. 1 : 4
Correct Answer: Option C -
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Explanations:

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