Question

The length of a rectangle is 7 cm more than its breadth. If its perimeter is 50 cm, find the length and breadth of the rectangle

Answer 1

Let the breath of the rectangle is x cm.
So, the length of the rectangle is (x+7)cm
So the perimeter is 2(x+(x+7))cm
According to the question
2(x+(x+7))=50
x+x+7=50/2
2x+7=25
2x=18
x=18/2=9
So the breadth is 9cm and the length is 9+7cm=16cm

Answer 2

let length be x+7 and breadth be X, perimeter =50

2(x+7+x)=50
2x+14+2x=50
4x+14=50
4x=50-14
4x=36
x=36/4
x=9
so, breadth = 9
length = 9+7
=16