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5th Class Mathematics Arithmetic Question Bank Arithmetic

  • question_answer
    At what rate percent per annum does a sum of\[Rs.1800\]become\[Rs.2700\]in \[10\] years?

    A) \[5%\]                           

    B) \[6%\]               

    C) \[10%\]             

    D)        \[8%\]               

    Correct Answer: A

    Solution :

    \[P=Rs.\,\,1800\],                       \[A=Rs.\,\,2700\] \[T=10\] years \[I=A-P=Rs.(2700-1800)=Rs.\,\,900\] \[R=\frac{100\times I}{P\times T}=\frac{100\times 900}{1800\times 10}=5%\]


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