Question

The length of a rectangle is less than thrice its breadth by 3 cm.If the perimeter of the rectangle is 82 cm.Find the breadth of rectangle?

Answer 1

let
l = length
b = breadth

according to question
l = 3b - 3

perimeter = 2(l+b)
82 = 2(3b-3 + b)
82 = 2(4b-3)
41 = 4b - 3
__________
44 = 4b
________
b = 11cm


so breadth = 11cm


hope it helps you
@di