The cost of harvesting a square field at RS. 900 per hectare is RS. 8100. Find the cost of putting a fence around it at RS. 18 per metre.

Question

Philoid · Accepted Answer

Given:

Rate = Rs 900 per hectare

Total Cost = Rs 8100

Rate of fencing = Rs 18 per metre

Let the side of square field be s

Now,

= 9 hectares = 90000 m²

Area = side²

⇒ 90000 m² = side²

⇒ side = 300 m²

Now,

Perimeter = 4 × side

= 4 × 300 m²

= 1200m²

Therefore,

Cost of fencing = 1200 m² × Rs 18 per metre

= Rs 21600