Question
The ratio of the length, width and height of a closed
cuboid is given as 6 : 3 : 2. The total surface area of this cuboid is given as 1800 cm2. Find the volume (in cm3) of this cuboid.Solution
The ratio of the l, b and h = 6:3:2 l=6x b=3x h=2x surface area of cuboid = 2(lb+bh+hl)Â 1800= 2(18x2+6x2+12x2 900=36x2 x2=25 x=5 so now the volume of cuboid = 36Ă—125=4500cubic cm
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