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SSC Sample Paper SSC CGL - Sample Paper-30

  • question_answer
    The simple interests on a certain sum at 5% per annum for 3 yr and 4 yr differ by Rs. 42. The sum is

    A) Rs. 210             

    B) Rs. 280

    C) Rs. 750             

    D) Rs. 840

    Correct Answer: D

    Solution :

    Let the sum \[=Rs.\,P\] \[\therefore \] According to question,             \[\frac{P\times 4\times 5}{100}-\frac{P\times 3\times 5}{100}=42\] \[\Rightarrow \]   \[~20P-15P=4200\] \[\Rightarrow \]   \[P=\frac{4200}{5}=840\] \[\therefore \] The sum \[=Rs.\,840\]


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