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SSC Sample Paper SSC CGL - Sample Paper-17

  • question_answer
    On a certain sum, the simple interest at the end of \[6\frac{1}{4}yr\] becomes\[\frac{3}{8}\]of the sum. The rate of interest is

    A) 5%                               

    B) 6%

    C) 7%                               

    D) 8%

    Correct Answer: B

    Solution :

    \[\frac{\text{Interest}}{\text{Principal}}\text{=}\frac{\text{3}}{\text{8}}\] \[\therefore \]      \[\text{Rate=}\frac{\text{SI }\!\!\times\!\!\text{ 100}}{\text{Principa }\!\!\times\!\!\text{ Time}}\]             \[=\frac{3}{8}\times \frac{100}{\frac{25}{4}}=\frac{3}{8}\times \frac{400}{25}=6%\,\text{per}\,\text{annum}\]


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