Question

The side of a rectangular Park are in the ratio 4:3 . If its area is 1728 m² ,find the cost of franchising it is at ₹30 per metre​

Answer 1

Step-by-step explanation:

let the sides of the park be 4x and 3x

Area of the park = 1728

lenght × breadth = 1728

4x × 3x = 1728

12xsq = 1728

xsq = 1728/12

x = root 144

x = 12

therefore

lenght and breadth = 2×2×3 = 12

hence,

lenght = 4×12=48

breadth = 3×12=36

perimeter = 2(48+36)

= 2×84= 168 m

cost of fencing = rs(168×30)

=rs5040

hope it helped you