8th Class Mathematics Related to Competitive Exam Question Bank Arithmetic

  • question_answer
    Bhanu borrowed a certain sum of money at 12% per annum for 3 years and madhuri borrowed the same sum at 24% per annum for 10 years. Find the ratio of their amounts.

    A) 1:3                                    

    B) 2:1

    C) 2:3                                    

    D) 2:5

    Correct Answer: D

    Solution :

    Bhanu                                Madhuri \[\frac{3}{4}\]                               \[\frac{9}{16}x\] \[\frac{16}{9}x\]                           \[8\frac{1}{7}\] Let P = 100 \[\frac{{{A}_{1}}}{{{A}_{2}}}=\frac{P\left( 1+\frac{{{R}_{1}}{{T}_{1}}}{100} \right)}{P\left( 1+\frac{{{R}_{2}}{{T}_{2}}}{100} \right)}\] \[6\frac{6}{7}\] \[4\frac{1}{2}\]  \[\frac{7}{6}\]


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