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CMC Medical CMC-Medical VELLORE Solved Paper-2013

  • question_answer
    The difference between the compound interest and simple interest on a certain sum of money for 3yr at \[6\frac{2}{3}%\]per annum is 3 Rs. 184, then what is the sum?

    A)  Rs. 13500           

    B)  Rs. 12500

    C)  Rs. 11500           

    D)  Rs. 10500

    Correct Answer: A

    Solution :

                    Required sum\[=\frac{D\times {{100}^{3}}}{{{R}^{2}}(R+300)}\] \[\Rightarrow \]               \[P=\frac{184\times {{100}^{3}}}{{{\left( \frac{20}{3} \right)}^{2}}\left( \frac{20}{3}+300 \right)}\]                     \[=\frac{184\times 9\times 3\times 1000000}{92\times 4\times 1000}\] \[\therefore \]  \[P=\text{Rs}\text{.}\,13500\]


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