Question

There is a cuboid of sides $2$ cm, $2$ cm and $3$ cm. How many such cuboids are needed to form a cube?

• A. $16$
• B. $12$
• C. $18$
• D. $14$

Answer 1

Answer: (C)

$18$

Volume of cube = $2\times 2\times 3{cm}^3$

Here $2$ and $3$ are left which do not form a triplet

To make it perfect cube, we multiply it by

$3\times 3\times 2=18$

$18$ cuboids are needed to form a cube