2. Sample Papers
  3. Railways

Railways Sample Paper RRBs Assistant Loco Pilot and Technician CBT STAGE-I Sample Paper-9

  • question_answer
    The compound interest on a certain sum for the first year at 4% is Rs. 25. The compound interest for 2 yr at the same rate on the sum will be

    A)  Rs. 50

    B)         Rs. 51

    C)  Rs. 52

    D)  Rs. 54

    Correct Answer: B

    Solution :

    According to questions, \[\,25=P\left[ {{\left( 1+\frac{4}{100} \right)}^{1}}-1 \right]\] \[25=P\left[ \frac{26}{25}-1 \right]\] \[25=\frac{P}{25}\] \[\therefore \] \[P=25\times 25=625\] \[\therefore \] Compound interest for 2 yr \[=625\left[ {{\left( 1+\frac{4}{100} \right)}^{2}}-1 \right]\] \[=625\left[ \frac{26\times 26}{25\times 25}-1 \right]\] \[=625\left[ \frac{676-625}{625} \right]=\]Rs. 51


You need to login to perform this action.
You will be redirected in 3 sec spinner