8th Class Mathematics Related to Competitive Exam Question Bank Arithmetic

  • question_answer
    At what rate of interest per annum will a sum double itself in 8 years, if calculated as per Simple Interest formula?

    A) 25%                                  

    B)  \[{{n}_{1}}\]

    C)  \[{{R}_{2}}%\]            

    D) None of these

    Correct Answer: C

    Solution :

    \[\frac{3}{2}\] \[\frac{3}{8}\] \[\frac{9}{4}\] \[2{{n}^{2}}years\]       


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