8th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-3

  • question_answer
    If principal is x and rate of interest is y % annually for five years then which one of the following is correct for calculating the compound interest?

    A)  \[x\left\{ {{\left( 1+\frac{5}{100} \right)}^{y}}-1 \right\}\]         

    B)  \[y\left\{ {{\left( 1+\frac{5}{100} \right)}^{x}}-1 \right\}\]

    C)  \[x\left\{ {{\left( 1+\frac{y}{100} \right)}^{5}}-1 \right\}\]         

    D)  All of these

    E)  None of these

    Correct Answer: C


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