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Railways R.R.C. (Kolkata) Solved Paper Held on 2nd Shift 27-10-2013

  • question_answer
    The difference between compound interest and simple interest on a sum for 2 years at 8% p.a. is Rs. 768. The sum is?

    A) Rs. 1, 00,000                

    B) Rs. 1.10,000

    C) Rs. 1, 20,000                

    D) Rs. 1, 70,000

    Correct Answer: C

    Solution :

    Difference \[=P{{\left( \frac{R}{100} \right)}^{2}}\] \[768=P\,\,{{\left( \frac{R}{100} \right)}^{2}}\] \[P=\frac{10,000\times 768}{8\times 8}=Rs.\,\,1,20,000\]


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