Question

The cost of ploughing a square field at rupees 13.50 per square meter is rupees 5400.Find the cost of fencing the field at rupees 28.50 per meter.

Answer 1

Find the area of the square field:

Area = 5400 ÷ 13.5 = 400 m²

Find the length of the square field:

Area = Length²

Length² = 400

Length = √400

Length = 20 m

Find the perimeter:

Perimeter = 4 x Length

Perimeter = 4 (20) = 80 m

Find the cost of the fencing:

Cost of 1 m = Rs 28.50

Cost of 80 m = 28.50 x 80 = Rs 2880

Answer: The cost of fencing is Rs 2280.

Answer 2

Answer:

Step-by-step explanation:

Cost of fencing=₹5400

Cost of fencing per meter=₹1350

Perimeter= 5400÷13.50

=400m

Side=400/4=100

Area=100×100=10000m