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SSC Sample Paper SSC CGL - Sample Paper-28

  • question_answer
    A sum of Rs. 400 amounts to Rs. 480 in 4 yr. What will it amount to if the rate of interest is increased by 2%?

    A) Rs. 484             

    B) Rs. 560

    C) Rs. 512 

    D) None of these

    Correct Answer: C

    Solution :

    Given that \[P=Rs.\,400\] \[A=Rs.\,480\] \[\therefore \]    \[SI=Rs.\,80\]             \[t=4\,yr\] Hence,  \[80=\frac{400\times r\times 4}{100}\] \[\Rightarrow \]   \[r=\frac{80\times 100}{1600}=5%\] New rate of interest \[=7%\] Hence, new amount \[=400\left( 1+\frac{4\times 7}{100} \right)\]             \[=400\left( \frac{128}{100} \right)=Rs.\,512\]     


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