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7th Class Mathematics Integers Question Bank Integers

  • question_answer
    Which one of the following is equivalent to the expression \[\left( {{5}^{6}} \right)\text{ }\left( {{10}^{3}} \right)?\]

    A)  \[8\times {{5}^{9}}~~\] 

    B)  \[{{5}^{11}}~~\]         

    C)  \[80\times {{5}^{8}}~\]                     

    D)  \[{{5}^{10}}\]

    Correct Answer: A

    Solution :

    (a) \[{{5}^{6}}\times {{10}^{3}}={{5}^{6}}\times {{\left( 2\times 5 \right)}^{3}}\] \[=\text{ }{{5}^{6}}\times {{2}^{3}}\times {{5}^{3}}={{2}^{3}}\times {{5}^{9}}=8\times {{5}^{9}}\]             


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