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A metallic cuboid of dimensions 18*12*8 …

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A metallic cuboid of dimensions 18*12*8 is melted.find the minimum volume of molten metal which should be added to mould it into a cube whose edge is d cm
  • 1 answers

Yogita Ingle 7 years, 4 months ago

Dmensions  of a metalic cuboid  are18m×  12m  ×8m

 ∴  It's volume = 18 x 12 x 8 m3

                        = 2 x 3 x 3 x 2 x 2 x 3 x 2 x 2 x 2 m3

                        =2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 = (2 x 2 x 3)3

It is a perfect cube ,hence we can make a cube using it's molten metal.

So, it is not necessary to add a molten metal in it .

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