Question

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

Answer 1

Let the breadth be x then length =x+7
Now perimeter=2(l+b)
50=2(x+x+7)
50=4x+14
4x=36
x=9
Breadth =9
So length =9+7=16

Answer 2

Let the breadth be x
Let the length be x+7
A/Q 2(l+b)=50
2(x+x+7)=50
2(2x+7)=50
4x+14=50
4x=36
x=9

∴Breadth = x = 9cm
Length = x+7 = 9+7 = 16cm