Question

A cuboid of dimensions $(6cm\times 4cm\times 1cm)$ is painted black on both the surfaces of dimensions $(4cm\times 1cm)$, green on the surfaces of dimensions $(6cm\times 4cm)$ and red on the surfaces of dimension $(6cm\times 1cm)$. Now the block is divided into various smaller cubes of side $1cm$ each. The smaller cubes so obtained are separated. How many cubes will have two sides with green colour and remaining sides without any colour ?

• A. $12$
• B. $10$
• C. $8$
• D. $4$

Answer 1

The correct option is C $8$

Number of smaller cubes having $2$ sides of green colour and remaining sides without any colour = Number of smaller cubes within the cuboid $=8$.