Question

The number of $15$ cm square tiles required to lay to floor of size $30cm\times 45cm$ is

Answer 1

The dimensions of Floor $30cm\times 45cm$

The area is $30\times 451350c{m}^2$

The side of square tile $15cm$

The area of tile $15\times 15=225c{m}^2$

So the no.of tiles is given by $\frac{1350}{225}6tiles$