7th Class Mathematics Algebraic Expressions Question Bank Algebra

  • question_answer
    Exponential form of \[16\times 27\times 81\]is

    A)  \[{{2}^{4}}\times {{3}^{3}}\times {{8}^{1}}\]                      

    B)  \[{{2}^{7}}\times {{3}^{4}}\]

    C)  \[{{2}^{4}}\times {{3}^{4}}\times {{3}^{4}}\]                      

    D)  \[{{2}^{4}}\times {{3}^{7}}\]

    Correct Answer: D

    Solution :

     \[16={{2}^{4}},27={{3}^{3}},81={{3}^{4}}\] \[16\times 27\times 81={{2}^{4}}\times {{3}^{3}}\times {{3}^{4}}={{2}^{4}}\times {{3}^{7}}\]


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