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Railways Sample Paper RRB (Assistant Loco Pilot & Technician) Sample Test Paper-12

  • question_answer
    What will be the difference between the compound interest and simple interest at the rate of 8 p.c.p.a. on an amount of Rs. 6,000 at the end of two years?

    A)  Rs. 110.20                   

    B)  Rs. 120.40

    C)  Rs. 158.40       

    D)       Date inadequate

    Correct Answer: C

    Solution :

     S.I.  \[=\frac{6000\,\,\,\,\,\,8\,\,\,\,2}{100}\]= Rs. 840 Compound Interest = Rs. \[6000\,\left[ {{\left( 1+\frac{8}{100} \right)}^{2}}\,\,\,\,\,1 \right]\] =Rs .6000 \[\,\left[ \frac{27}{25}\,\,\,\,\,\,\,\frac{27}{25}\,\,\,\,\,\,\,1 \right]\,\,\,\,\] = Rs. \[6000\times \frac{104}{625}=\] Rs. 998.40   \[\therefore \] Required difference = Rs. \[\left( 998.40\text{ }-\text{ }840 \right)\text{ }=\]Rs. \[158.40\]


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