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SSC Sample Paper SSC CGL - Sample Paper-25

  • question_answer
    The simple interest on a certain sum for 8 months at 4% per annum is Rs. 129 less than the simple interest on the same sum for 15 months at 5% per annum. The sum is

    A) Rs. 2580                       

    B) Rs. 2400

    C) Rs. 2529                       

    D) Rs. 3600

    Correct Answer: D

    Solution :

    Let the sum \[=Rs.\,x\] According to question,             \[\frac{x\times 15\times 5}{100\times 12}-\frac{x\times 4\times 8}{100\times 12}=129\] \[\Rightarrow \]   \[75x-32x=\text{ }129\times 100\times 12\] \[\Rightarrow \]   \[x=\frac{129\times 100\times 12}{43}\]             \[=Rs.\,3600\]


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