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SSC Sample Paper Mock Test-14 SSC CGL Tear-II Paper-1

  • question_answer
    A sum of Rs. 1600 gives a simple interest of Rs. 252 in 2 yr and 3 months. The rate of interest per annum is

    A)  \[5\frac{1}{2}%\]

    B)  8%

    C)  7%      

    D)  6%

    Correct Answer: C

    Solution :

    Principal P = Rs. 1600 t = 2 yr 3 months \[=\left( 2+\frac{3}{12} \right)\,\,\text{yr}=\left( 2+\frac{1}{4} \right)\,\,\text{yr}=\frac{9}{4}\,\,\text{yr}\] SI = Rs. 252 r = Per cent rate of interest per annum \[r=\frac{100}{pt}\times \text{SI}\] \[r=\frac{100\times 252}{1600\times \frac{9}{4}}\]\[\Rightarrow \]\[r=\frac{100\times 4\times 252}{1600\times 9}\]\[\Rightarrow \]\[r=7%\]


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