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SSC Sample Paper SSC CHSL (10+2) Sample Test Paper-9

  • question_answer
    Area of the floor of a cubical room is 48 sq.m. The length of the longest rod that can be kept in that room is

    A) 9 metre                         

    B) 12 metre

    C) 18 metre                       

    D) 6 metre

    Correct Answer: B

    Solution :

    Length of room \[=\sqrt{48}\] \[=4\sqrt{3}\] metre \[\therefore \] Diagonal \[=\sqrt{3\,\times {{(4\sqrt{3})}^{2}}}\] \[=\sqrt{3\times 16\times 3}=12\] metre


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