Question

How many tiles whose length and breadth are $12cm$ and $5cm$, respectively will be needed to fit in a rectangular region whose length and breadth are respectively $70cm$ and $36cm$?

Answer 1

Calculate area of the rectangle:

Area of rectangle $=$ length $\times$width

Area of rectangular region$=70cm\times 36cm$

$=2520c{m}^2$

Area of a tile$=5cm\times 12cm$

$=60c{m}^2$

$Numberoftiles=\frac{Areaofrec\tan gularregion}{Areaofatile}$

$$\begin{gathered} =\frac{2520}{60} \\ =42 \end{gathered}$$

Hence, $42$ tiles are required to fit in the region.