Question

A path 1m wide is built inside a square park of side 30m along its sides. Find the area of the path. Calculate the cost of constructing the path at the rate of rupees70 per metre square

Answer 1

Area of the path = 116 m²

Cost of construction = ₹ 8120

Explanation:

Area of big square:

30 m × 30 m

= 900 m²

Area of small square:

28 m × 28 m

= 784 m²

Area of the path:

Area of big square - area of small square

= 900 - 784

= 116 m²

Cost of construction:

116 m² × ₹ 70/m²

= ₹ 8120