Question

Bob wants to cover the floor of a room $3$m wide and $4$m long by squared tiles. If each square tile is of side $0.5$m, then find the number of tiles required to cover the floor of the room.

Answer 1

Area of room=length * breadth

=3*4

=12

Area of one tile =0.5*0.5

=0.25

number of tiles is given by the formula,

number=area of room/area of one tile

So,

$\begin{array}{c}Number=\frac{12}{0.25}\\ =48\end{array}$

Thus 48 tiles will be used to cover an entire floor