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Q:

In what ratio must a mixture of 30 % alcohol strength be mixed with that of 50 % alcohol strength so as to get a mixture of 45 % alcohol strength? 

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

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