Question

The length of the rectangle is 8meters less twice it's breadth.the perimeter of the rectangle is 56cm.find it's length and breadth?

Answer 1

length=2b-8
breadth=b
2b-8+2b=28
4b=36
b=9

Answer 2

Let the length and breath be x meters and y meters respectively
According to the question,
x+8=2y
x=2y-8 ____(1)
perimeter = 56m
2(x+y)=56
x+y=28
2y-8+y=28 {From (1)}
3y=36
y=12 => x=16
length is 16m
breath is 12m