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SSC Quantitative Aptitude Mensuration Question Bank Mensuration-II (II)

  • question_answer
    Three cubes of iron whose edges are 6 cm, 8 cm and 10 cm respectively are melted and formed into a single cube. The edge of the new cube formed is [SSC CGL Tier II, 2017]

    A) 12 cm

    B) 14 cm

    C) 16cm

    D) 18 cm

    Correct Answer: A

    Solution :

    [a] Side of new cube \[=\sqrt[3]{{{(6)}^{3}}+{{(8)}^{3}}+{{(10)}^{3}}}\] \[=\sqrt[2]{216+512+1000}\] \[=\sqrt[3]{1728}=12\,cm\]


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