Question

A builder needs to tile a 7 foot by 8 foot room with one-foot square tiles. how many tiles will she need?

Answer 1

I believe that she will need 56 square tiles. You get this by doing 7 times 8 which is 56. Then, since each tile is a one-foot square tile, you would need 56 tiles to cover the whole floor. 

Answer 2

Answer:   56 tiles.

Step-by-step explanation:

Given : A builder needs to tile a 7 foot by 8 foot room with one-foot square tiles.

i.e. Area of a tile = 1 square foot.

Now, the area of the room is given by :-

$\text{Area of room}=6\times8=56\text{ ft}^2$

Now, the number of tiles required is given by :-

$n=\dfrac{\text{Area of room}}{\text{Area of one tile}}\\\\=\dfrac{56}{1}=56$

Hence, she will need 56 tiles.