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Railways R.R.C. (Jabalpur) Solved Paper Held on 1st Shift 30-11-2014

  • question_answer
    If Rs. 20 is the difference of simple interest and compound interest for two years at 4% per annum, then the principal is?

    A) Rs. 13, 000                   

    B) Rs. 12, 000

    C) Rs. 13, 500                   

    D) Rs. 12, 500

    Correct Answer: D

    Solution :

    Principal amount\[=20\times {{\left( \frac{100}{4} \right)}^{2}}\] \[=20\times {{(25)}^{2}}\] \[=20\times 625\] \[=Rs.\,\,12,500\]


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