Cost of fencing around a square field is Rs. 12000. If the cost of fen

1.	Cost of fencing around a square field is Rs. 12000. If the cost of fencing per metre is Rs. 30, find the area of the square field.
Answer» Cost of fencing per metre = Rs 30 Total cost of fencing = Rs 12000 So, the length of fencing (perimeter) = Total cost/ Cost per metre = 1200/30 = 400 m Now, length of fencing = Perimeter of the square field = 4 × side of the field Therefore, 4 × side of the field = 400 m or, side of the field = 400/4 m = 100 m So, area of the field = 100 m × 100 m = 10000 sq m.

Cost of fencing around a square field is Rs. 12000. If the cost of fencing per metre is Rs. 30, find the area of the square field.

Answer»

Cost of fencing per metre = Rs 30

Total cost of fencing = Rs 12000

So, the length of fencing (perimeter) = Total cost/ Cost per metre

= 1200/30

= 400 m

Now, length of fencing = Perimeter of the square field

= 4 × side of the field

Therefore, 4 × side of the field = 400 m

or, side of the field = 400/4 m = 100 m

So, area of the field = 100 m × 100 m = 10000 sq m.