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  5. Mensuration

8th Class Mental Ability Mensuration Question Bank Mensuration

  • question_answer
    A metallic sheet is of rectangular shape with dimensions \[\mathbf{48m}\times \mathbf{36m}\]. From each of its corners, a square is cut off so as to make an open box. If the length of the square is 8m, the volume of the box \[(in\,\,{{m}^{3}})\] is :

    A) 4830                    

    B)         5120

    C) 6420                    

    D)          8960

    E) None of these

    Correct Answer: B

    Solution :

    Explanation Option [b] is correct. Clearly, \[~l=\left( 48-16 \right)m=32m,\text{ }b=\left( 36-16 \right)m-20m,\text{ }h-8\text{ }m\] \[\therefore \] Volume of the box \[=(32\times ~20\times ~8){{m}^{3}}~=5120\,{{m}^{3}}\]


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