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      Question

      What must be added to each term of the ratio 4:7 so that

      it may equal to 3:4?
      A 3 Correct Answer Incorrect Answer
      B 4 Correct Answer Incorrect Answer
      C 5 Correct Answer Incorrect Answer
      D 6 Correct Answer Incorrect Answer

      Solution

      Let's the added number be x. => (4 + x)/(7 + x) = 3/4 =>Β 16 + 4x = 21 + 3x => x = 5

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