Question 111

A solid cuboid of dimensions 8 cm x 4 cm x 2 cm is melted and cast into identical cubes of edge 2 cm. Number of such identical cubes is

Solution

Length, breadth and height of cuboid respectively are = 8 cm, 4 cm and 2 cm

Side of cube = 2 cm

=> Number of cubes formed = Volume of cuboid/Volume of cube

= $$\frac{l\times b\times h}{a^3}$$

= $$\frac{8\times4\times2}{2^3}$$

= $$4\times2=8$$

=> Ans - (A)

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