Question

9. The ratio of the length of a rectangle to its breadth is 3 : 2. If its perimet
is 130 m, find its length and breadth​

Answer 1

given

length:breadth =3:2

perimeter =130m

solution

let the common ratio be x

then

l= 3x,b=2x

as we know that formula of a rectangle =2(l+b)

therefore,

2(3x+2x)=130

2×5x=130

10x=130

x=13

therefore

length =3×13=39

breadth =2×13=36

Answer 2

Answer:

let length = 3x

breadth = 2x

perimeter of rectangle is 2(l+b) =130

2(3x+2x) =130

(3x+2x) =130/2

5x=65

x=13 then

length =3*13=39

breadth =2*13=26