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8th Class Mathematics Cubes and Cube Roots Question Bank Cubes and Cube Roots

  • question_answer
    The value of \[{{45}^{3}}-{{65}^{3}}-{{20}^{3}}\]is __.

    A)  175500                      

    B)  -191500         

    C)  170000          

    D)         -170000         

    Correct Answer: B

    Solution :

    We have, \[{{45}^{3}}\text{ }-\text{ }{{65}^{3}}\text{ }-{{20}^{3}}\] \[=91125-274625-8000=-191500\]


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