Question

The cost of fencing a square field at ₹16 per meter is ₹3,2000. Find the cost of ploughing the field at ₹25 per 100msq.

Answer 1

4a× 16 = 3,2000

4a=2000m
a=500m

Cost of ploughing=a^2×25
=500*500*25
= 250000*25
=6250000paisa
=₹62500

Answer 2

Given that total cost of fencing a square field = 32000 rupees.

Given that cost of fencing a square field per meter = 16.

We know that perimeter = Total cost/Rate

                                         = 32000/16

                                         = 2000.


We know that perimeter = 4s.

4s = 2000

s = 500m.

Area of the square field = s^2

                                        = 500 * 500

                                        = 250000m^2.


Cost of ploughing the field is 25 per 100m^2

 = 25/100 * 250000

= 62500 rupees.


Hope this helps!