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

  • question_answer If the difference between the compound and simple interest on a certain sum of money for 3 years at 5% per annum is Rs. 15-25, then the sum is?

    A) Rs. 1, 000                     

    B) Rs. 2, 500

    C) Rs. 1, 500                     

    D) Rs. 2.000

    Correct Answer: D

    Solution :

    Required sum \[=\frac{15.25}{\left( \frac{5}{100}+3 \right)}\times {{\left( \frac{100}{5} \right)}^{2}}\]  \[=\frac{15.25\times 20\times 20\times 20}{61}\]  \[=Rs.\,\,2,000\]

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