Question

The ratio between the length and breadth of a rectangular field is 5:4 . If breadth is 20 m less than length what is perimeter

Answer 1

Step-by-step explanation:

Let me length be 5x m and breadth be 4x m

ATQ,5x-20=4x

or 5x-4x=20

or X=20

length=5×20=100 m and breadth=4×20=80 m

perimeter=2×(100+80)=2×180=360 m