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

  • question_answer
    If you subtract a number, x from 17 times that number, and then take the cube of the difference, what will be the result?

    A) \[1728\,{{x}^{3}}\]                             

    B)  \[4913\,{{x}^{3}}\]

    C)  \[4096\,{{x}^{3}}\]

    D)  \[5832\,{{x}^{3}}\]

    Correct Answer: C

    Solution :

    (c): \[17x-x=16x\] Then cube it \[\Rightarrow {{\left( 16x \right)}^{3}}=4096{{x}^{3}}.\]                     


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