8th Class Mathematics Related to Competitive Exam Question Bank Arithmetic

  • question_answer
    A sum lent at SI amounts in 2 years to Rs.578.40 and in 3 years to Rs.614.55. Find the rate of interest.

    A) 5%                        

    B)  \[=\frac{R}{{{\left( 1+\frac{R}{100} \right)}^{n}}}\]

    C) 7%                        

    D)  \[{{R}_{1}}%\]

    Correct Answer: B

    Solution :

    SI for \[\frac{a}{b}=\frac{c}{d}\] SI for year = Rs.36.15. \[\frac{a+b}{b}=\frac{c+d}{d}\]


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