Question

The cost of fencing a square field at ₹125 per metre is ₹8000.find the area of the field.

Answer 1

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cost of fencing a square field at ₹125 per metre is ₹8000.
so
area =80000÷125
=640

Answer 2

Perimeter of square field = cost / rate

= 8000/125

= 64 m

So the side of the field= 4 × side = 64

Side = 64/4 = 16 m

So the area of the field..is side × side

= 16 × 16

= 256 m^2