2. Sample Papers
  3. Railways
  4. Quantitative Aptitude
  5. Compound Interest

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

  • question_answer
    Gopi borrowed Rs. 1800 at 12% per annum for 2 years and Krishna borrowed Rs. 1200 at 18% per annum for 3 years. Then the ratio of interests paid by them is

    A)  1 : 2                

    B)  2 : 3

    C)  3 : 1                

    D)  2 : 1

    Correct Answer: B

    Solution :

    [b]                   
    Gopi Krishna
    P = Rs. 1800 P = Rs. 1200
    R = 12% R = 18%
    T = 2 years T = 3 years
    \[{{I}_{1}}=\frac{PTR}{100}\]              \[{{I}_{2}}=\frac{PTR}{100}\] \[=\frac{1800\times 2\times 12}{100}\]                \[=\frac{1200\times 3\times 18}{100}\] = Rs. 432                      = Rs. 648 \[{{I}_{1}}:{{I}_{2}}=432:648=2:3.\]


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