Question

the length and breadth of a rectangular field are in the ratio 3:2 find the cost of fencing the field at the rate of 500 per if the area of the field is 3456 metre square

Answer 1

Let length be 3x and breadth be 2x

Area=3x×2x

3456=6x^2

X=√576

X =24

Length=3×24=72m

Breadth=2×24=48m

Perimeter=2×(72+48)

Perimeter=240m

Cost of fencing of 1m=₹500

Cost of fencing of 240m=₹120000