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8th Class Mathematics Exponents and Power Question Bank Exponents and Powers

  • question_answer
    \[\frac{{{\mathbf{8}}^{\mathbf{-1}}}\mathbf{\times }{{\mathbf{5}}^{\mathbf{3}}}}{{{\mathbf{2}}^{\mathbf{-4}}}}\]=

    A)  250    

    B)  325          

    C)  125                             

    D)  100

    Correct Answer: A

    Solution :

    (a): \[\frac{{{8}^{-1}}\times {{5}^{3}}}{{{2}^{4}}}=\frac{{{2}^{-3}}\times {{5}^{3}}}{{{2}^{-4}}}={{2}^{1}}\times {{5}^{3}}=250\]            


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