The area of a rectangular field is $720\ m^2$, if its width is $18\ m$ what is its length?
Given:
The area of a rectangular field is $720\ m^2$ and its width is $18\ m$.
To do:
We have to find the length of the rectangle.
Solution:
We know that,
Area of a rectangle of length $l$ and breadth $b$ is $lb$.
Let the length of the rectangle be $x$.
This implies,
$720=18\times x$
$x=\frac{720}{18}$
$x=40\ m$
Therefore, the length of the rectangle is $40\ m$.
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