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    Question

    If a sum increase by 21% after 2 years, then the rate of

    compound interest per annum, when compound annually. Must be:
    A 10.5% Correct Answer Incorrect Answer
    B 11.5% Correct Answer Incorrect Answer
    C 10% Correct Answer Incorrect Answer
    D 11% Correct Answer Incorrect Answer

    Solution

    The correct answer is C

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