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Railways Sample Paper RRB (Assistant Loco Pilot & Technician) Sample Test Paper-14

  • question_answer
    What would be the compound interest obtained on an amount of Rs. 7500 at the rate of 9 p.c.p.a after 3 years?

    A) Rs. 2812.7175               

    B) Rs. 2612.7175

    C) Rs. 2414.7175    

    D)     Rs. 2212.7175

    Correct Answer: D

    Solution :

       C.I. =P   \[\left[ {{\left( 1+\frac{R}{100} \right)}^{T}}\,\,\,1 \right]\]         \[=7500\,\left[ {{\left( 1+\frac{9}{100} \right)}^{3}}1 \right]\]         \[=7500\,\,\left[ {{(1.09)}^{3}}\,\,\,\,\,1 \right]\,\,\,\,\]     \[=7500\,\,(1.295029-1)\]     =Rs. \[(7500\,\,\,\,\,0.295029)\]     =Rs.  \[2212.7175\]


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