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Railways R.R.C. (Jabalpur) Solved Paper Held on 2nd Shift 9-11-2014

  • question_answer
    The compound interest accrued on an amount at the end of two years at 15 per cent per annum is Rs.2915-4. Find the amount?

    A) Rs.10, 250                    

    B) Rs.76, 200

    C) Rs.9, 040                      

    D) Rs.8, 540

    Correct Answer: C

    Solution :

    Let the amount is Rs. P. Then, 2915.4 \[=P\left[ {{\left( 1+\frac{15}{100} \right)}^{2}}-1 \right]\] \[=P\left[ {{\left( \frac{23}{20} \right)}^{2}}-1 \right]\] \[=P\left[ \frac{129}{400} \right]\] \[P=\frac{2915.4\times 400}{129}\] \[=Rs.\,\,9040\]


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