From 40 liters of 2 : 3 milk-water solution, 8 liters are withdrawn and replaced by 8 liters of milk. What is the approximately minimum number of times should we perform the operation of withdrawing and replacing so that the milk concentration is at least 60%?

  • Option 1)

    4

  • Option 2)

    3

  • Option 3)

    more\: than\: 3

  • Option 4)

    2

  • Option 5)

    1

Answers (1)
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