Question

Karan made a cuboid out of plasticine, whose length, breadth and height is $5cm,2cm$ and $10cm$. How such cuboids will he need to make a perfect cube?

Answer 1

Volume $=l\times b\times h=5\times 2\times 10=100$ of cuboid

To make it perfect cube $\Rightarrow s^3=100\times n$ cube

which is $n=10$

$\Rightarrow s^3=1000$ which becomes perfect cube

$\therefore n=10$ required.