Question

    What number has to be added to each term of 3:4 to make

    the ratio 6:7?
    A 7 Correct Answer Incorrect Answer
    B 5 Correct Answer Incorrect Answer
    C 3 Correct Answer Incorrect Answer
    D 9 Correct Answer Incorrect Answer

    Solution

    Let the number to be added be x. According to the question, => (3 + x)/(4 + x) = 6/7 => 21 + 7x = 24 + 6x => x = 3

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