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    Question

    What number has to be added to each term of 4:7 to make

    the ratio 5:6?
    A 9 Correct Answer Incorrect Answer
    B 5 Correct Answer Incorrect Answer
    C 7 Correct Answer Incorrect Answer
    D 11 Correct Answer Incorrect Answer

    Solution

    Let the number to be added be x. According to the question, => (4+x)/(7 + x) = 5/6 => 24 + 6x = 35 + 5x => x = 11

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