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SSC Sample Paper Mock Test-11 SSC CGL Tear-II Paper-1

  • question_answer
    The perimeter of the floor of a room is 18 m. What is the area of the walls of the room, if the height of the room is 3 m?

    A)  \[21\,\,{{\text{m}}^{2}}\]

    B)  \[42\,\,{{\text{m}}^{2}}\]

    C)  \[54\,\,{{\text{m}}^{2}}\]

    D)  \[108\,\,{{\text{m}}^{2}}\]

    Correct Answer: C

    Solution :

    Area of four walls of a room = 2 (Length + Breadth) \[\times \]Height = Perimeter of floor \[\times \]Height \[=18\times 3=54\,\,{{\text{m}}^{2}}\]


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