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Q:

A and B are solutions of acid and water. The ratio of water and acid in A and B are 4 : 5 and 1 : 2, respectively. If x literes of A is mixed with y litres of B, then the ratio of water and acid in the mixture becomes 8 : 13. What is x : y ?

  • 1
    5 : 6
  • 2
    2 : 5
  • 3
    3 : 4
  • 4
    2 : 3
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Answer : 3. "3 : 4"

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