Word problem : The length of a rectangular plot of land is `15m` more than its breadth. Find the breadth of the plot, if its perimeter is `70m`.

Explanation

Solution of the word problem:
Let the breadth of the plot be `x m` and length `y m`.
From the first condition `x+15=y` `:. X-y=-15`…..`(1)`
The perimeter of the rectangle `=2(l+b)`
From the second condition, `70=2(y+x)`
i.e. `y+x=35` .....(Dividing both the sides by `2`)....`(2)`
Adding equationa `(1)` and `(2)`
`{:(2x=20,:.x=10):}`