Question

the cost of fencing at the rs. 16 per meter is rs. 32000. find the cost of ploughing of a field at the rate of rs. 25 per 100m square.

Answer 1

Assume the field is square shaped.
Then the perimeter of the field = 32,000/16 = 2,000 m.
The size of one side = 2,000/5=400 m

Area = 160,000 m^2
Cost of ploughing = 160,000 * 25/100  Rs = Rs 40,000.