Sixteen identical solid cubes, each of side 2 cm, are melted and recast into a cuboid whose length is twice its breadth and height equals its breadth. Find the volume of the cuboid.
128 cm3
Volume of 16 cubes of side 2 cm: \(16\times2^3 = 16\times8=128\) cm3.
Since melting and recasting preserves total volume, the cuboid's volume is also 128 cm3.
Hence, the volume of the cuboid is 128 cm3.