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Railways Quantitative Aptitude Compound Interest Sample Paper Simple Interest & Compund Interest Sample Test Paper-15

  • 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. The ratio of their amounts, is

    A)  1 : 3                

    B)  2 : 1

    C)  2 : 3                

    D)  2 : 5

    Correct Answer: D

    Solution :

    [d]       
    Bhanu Madhuri
    \[{{T}_{1}}=3\,years\] \[{{T}_{2}}=10\,years\]
    \[{{R}_{1}}=12%\] \[{{R}_{2}}=24%\]
    Let P = 100
    \[\frac{{{A}_{1}}}{{{A}_{2}}}=\frac{100+{{T}_{1}}{{R}_{1}}}{100+{{T}_{2}}{{R}_{2}}}\] \[=\frac{100+3\times 12}{100+10\times 24}\] \[=\frac{136}{340}=\frac{2}{5}\] \[\therefore \,\,\,{{A}_{1}}:{{A}_{2}}=2:5\]


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