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    Question

    A sum doubles in 9 years at simple interest. Find the

    rate of interest per annum is.
    A 10% Correct Answer Incorrect Answer
    B 11(1/9)% Correct Answer Incorrect Answer
    C 10(1/9)% Correct Answer Incorrect Answer
    D 13% Correct Answer Incorrect Answer

    Solution

    9years =2times Rate = [(2-1)/9] ├Ч100=100/9=11(1/9)%

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