8th Class Mathematics Related to Competitive Exam Question Bank Arithmetic

  • question_answer
    The difference of simple interest on 13% p.a. and 12% p.a. of a certain sum in one year is Rs.110.00, then the sum is

    A) Rs.12000             

    B) Rs.13000

    C) Rs.11000       

    D) Rs.16000

    Correct Answer: C

    Solution :

    Let the sum be Rs.x, then \[{{V}_{n}}\] \[{{V}_{n}}={{V}_{0}}{{\left( 1-\frac{R}{100} \right)}^{n}}.\] \[{{V}_{0}}\] \[{{R}_{1}}%\] \[{{n}_{1}}\]               


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