Question

the length of a square park is 4.5 m the cost of ploughing it at the rate of ₹ 20 per m sq2 . find the cost .... bata do yrr koi please kl mujhse mera paper submit krna h please batado koi​

Answer 1

Question :

• The length of a square park is 4.5 m. The cost of ploughing it at the rate of ₹ 20 per m² . Find the cost of ploughing the plot.

Given :

• Side of park = 4.5m
• Rate of ploughing = ₹20 per m²

To Find :

• Total Cost of Ploughing the Plot.

Solution :

Ploughing is done on the area of the park. So to find the total area to be ploughed, we will find the area of the square park.

Total Area of Ploughing :

⠀⟶⠀Total Area of Park = (side)²

⠀⟶⠀Total Area of Park = side × side

⠀⟶⠀Total Area of Park = 4.5 × 4.5

⠀⟶⠀Total Area of Park = 20.25m²

Total Cost of Ploughing :

⠀⟶⠀Total Cost = Total Area × Rate

⠀⟶⠀Total Cost = 20.25 × 20

⠀⟶⠀Total Cost = ₹405

⛬ Total Cost of Ploughing is ₹405

___________________

Answer 2

Given :-

• Length of a square park = 4.5m

• Cost of ploughing = ₹ 20 per m²

To find :-

• Cost of ploughing.

Using formula :-

Area of square = side × side

Solution :-

Side of square = 4.5m

Area of square = side × side

= 4.5m × 4.5m

= 20.25m²

Therefore, Area of square = 20.25m²

Cost of ploughing 1m² area = ₹ 20

Cost of ploughing 20.25m² area = 20.25 × 20

= ₹405

Therefore, Cost of ploughing = ₹405