Question

The length of a rectangle is 6 m less than thrice its breadth. Find the dimensions of the plot if its perimeter is 148 m.

Answer 1

Given,
l = 3b - 6
2(l+b) = 148
l+b = 74
3b-6+b = 74
4b - 6 = 74
4b = 74+ 6 = 80
$b=\frac{80}{4}=20mA$
$l=3\times 20-6=54m$