8th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-18

  • question_answer
    Three cubes of metal with edges 3 cm, 4 cm and 5 cm, respectively are melted to form a single cube. Find the lateral surface area of the new cube so formed.

    A)  \[267\,\,c{{m}^{2}}\]             

    B)  \[284\,\,c{{m}^{2}}\]

    C)  \[224\,\,c{{m}^{2}}\]             

    D)  \[144\,\,c{{m}^{2}}\]

    E)  None of these

    Correct Answer: D


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