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  1. The area of the floor of a room is 20 m2 that of a longer wall 15 m2 and of the shorter wall 12 m2, find the edge of the new cube?
    2. A.
    450 m3
    B.
    100 m2
    C.
    60 m3
    D.
    400 m3

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    Answer : Option C

    Explanation :

    lb = 20 ; lh = 15 ; fh = 12

    (lbh)2 = 20 * 15 * 12 => lbh = 60 m3

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