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A dairy can has 40 litres of pure milk. Four litres are taken out and replaced with water, and this is done once more. How many litres of milk remain?

Competition practiceRatio, Proportion & Mixtures
  • A32.4
  • B32
  • C36
  • D33

Step-by-Step Solution

Each step keeps 36/40 = 0.9 of the milk. After two steps: litres.
Answer: A) 32.4

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