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SSC Sample Paper Mock Test-4 SSC CGL Tear-II Paper-1

  • question_answer
    A sum of money invested at compound interest amounts in 3 yr to Rs. 2400 and in 4 yr to Rs. 25 20.  The interest rate per annum is

    A)  5%      

    B)  6%

    C)  10%                

    D)  12%

    Correct Answer: A

    Solution :

    SI on Rs.  2400 for 1 yr = Rs. \[(2520-2400)\] = Rs. 120 \[\therefore \] Rate \[=\frac{\text{SI }\!\!\times\!\!\text{ 100}}{\text{Principal }\!\!\times\!\!\text{ Time}}=\frac{120\times 100}{2400\times 1}=5%\]                        


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