Question

the length and breadth of a rectangular piece of land are in the ratio 5 is to 3 if the total cost of fencing it @ rupees 24 per metre is rupees 9600 find area​

Answer 1

Answer:

3125

Step-by-step explanation:

perimeter =9600÷24=400

let length =5x

breath =3x

2×(length +breath)

2×(5x+3x)=400

2×8x=400

8x=400÷2

x=200÷8=25

x=25

length =5x=5×25

=125

breath =3x=3×25

=75

area=length ×breath

=125×75

=3125

Answer 2

Step-by-step explanation:

ratio=5:3

Total cost =9600

per metre cost=24

so, perimeter=9600/24

                     =400

let the length=5x

b=3x

p=(5x+3x)2

 =16x=400

x=400/16

 =25

area=15x^2

      =15*5^2

      =15*25

      =9375 m^2

 ANS : 9375 m^2