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  3. 8th Class
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8th Class Mathematics Exponents and Power Question Bank Exponents

  • question_answer
    If \[{{3}^{m}}=\text{ }{{\left( 81 \right)}^{n}}=\text{ }{{\left( 729 \right)}^{r}}=\text{ }243\] then find the value of \[{{\left( \frac{3m}{4}+n \right)}^{3}}-{{(4n+6r)}^{3}}\]

    A)  1125                  

    B)      875

    C)  -875            

    D)     -1125

    E)  None of these

    Correct Answer: C

    Solution :

    Not Available       


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