The cost of fencing a square field at 60 paise per metre is Rs. 1200. Find the cost of reaping the field at the rate of 50 paise per 100 sq. metres.
Perimeter of square field = 
Perimeter of square field = 
Perimeter of square = 4 × side
Side of square = 
Area of square = side2
Area of square = 500 × 500 = 250000 m2
Cost of reaping = 
Cost of reaping is Rs 
17