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Railways Sample Paper RRBs Assistant Loco Pilot and Technician CBT STAGE-I Sample Paper-14

  • question_answer
    On what sum does the difference between the compound interest and the simple interest for 3 yr at 10% is Rs. 31?

    A)  Rs. 1500          

    B)  Rs. 1200

    C)  Rs. 1100          

    D)  Rs. 1000

    Correct Answer: D

    Solution :

    Difference between SI and CI for 3 yr = Rs. 31 \[P{{\left( \frac{10}{100} \right)}^{2}}\left( \frac{300+10}{100} \right)=31\] \[\Rightarrow \]   \[P=\frac{31\times 100\times 100}{310}=\]Rs. 1000


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