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SSC Sample Paper SSC CGL - Sample Paper-19

  • question_answer
    If the difference between the compound interest and simple interest on a sum at 5% rate of interest per annum for three years is Rs. 36.60, then the sum is

    A) Rs. 8000                       

    B) Rs. 8400

    C) Rs. 4400                       

    D) Rs. 4800

    Correct Answer: D

    Solution :

    Trick Difference of SI and CI for 3 yr             \[=\frac{PR(300+R)}{{{100}^{3}}}\] Where, P = Principal, R = Rate of interest \[\because \]       \[\frac{P\times 25\times 305}{100\times 100\times 1000}=36.60\] \[\Rightarrow \]   \[P=\frac{36.60\times 100\times 100\times 100}{25\times 305}\]             \[=Rs.\,4800\]


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