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    Maths-
    General
    Easy

    Question

    Walls of the room of dimension 12x10x10 feet is to be painted. Find the area to be painted.

    1. 800
    2. 490
    3. 680
    4. 360

    The correct answer is: 680

      Area to be painted = Lateral surface area of cuboid = 2( bh+hl)
      L=12, b= 10, h = 10
      =2(lb + bh + hl)
      =2(12*10 + 10*10 +12*10)
      =2(120 + 100 + 120)
      =2(340)
      =680

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