Question

the ratio between the length and breadth of a rectangular fild is 5:4.if the breadth is 20meters less than the length the parimeter of the field will be.

Answer 1

length= 20×5=100
breadth =20×4=80


perimeter=(100+80)×2
=180×2=360

Answer 2

length= 20×5=100

breadth =20×4=80

perimeter=(100+80)×2

=80×2=360