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In 77 litres of a milk-water mixture the ratio of milk to water is 5 : 2. How much water (in litres) should be added to change the ratio to 5 : 3?

Competition practiceRatio, Proportion & Mixtures
  • A11
  • B7
  • C22
  • D33

Step-by-Step Solution

Milk = 55 L, water = 22 L. For 5 : 3 with 55 L milk, water must be 33 L, so add 33 − 22 = 11 L.
Answer: A) 11

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