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7th Class Mathematics Exponents and Power Question Bank Exponents and Powers

  • question_answer
    \[{{2}^{3}}+{{2}^{3}}+{{2}^{3}}+{{2}^{3}}\]is equal to ____.     

    A)  \[{{2}^{5}}\]                                  

    B)  \[{{2}^{12}}\]                    

    C)                     281                

    D)         216                            

    Correct Answer: A

    Solution :

    We have \[{{2}^{3}}+{{2}^{3}}+{{2}^{3}}+{{2}^{3}}=4\times ({{2}^{3}})\] \[={{2}^{3}}\times {{2}^{3}}={{2}^{3}}\]


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