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

  • question_answer
    The value of the expression \[\frac{{{4}^{-5}}\times {{10}^{6}}\times 625}{{{4}^{-8}}\times {{4}^{2}}}\] is given by

    A)  \[2.5\times {{10}^{9}}\]     

    B)  \[3.5\times {{10}^{5}}\]

    C)  \[4.5\times {{10}^{5}}\]                     

    D)  \[5.5\times {{10}^{5}}\]

    Correct Answer: A

    Solution :

    (a): \[\frac{{{4}^{(-5)}}\times 10\times 625}{{{4}^{(-3)}}{{4}^{(-8)}}\times {{4}^{2}}}={{10}^{6}}\times 625\times 4.\]


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