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A dairy can holds 72 litres of milk and water mixed in the ratio 7 : 2. How much water (in litres) must be added so that the ratio becomes 7 : 4?

Competition practiceRatio, Proportion & Mixtures
  • A16
  • B8
  • C32
  • D14

Step-by-Step Solution

Milk = L, water = 16 L. For 7 : 4 the water must be L, so add 32 − 16 = 16 L.
Answer: A) 16

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