Question

Q.2. A square field has a side 150 m long. There is a road 5 m wide all around the
the park outside it. Find the cost of constructing the road at Rs.250 per sq
metre.​

Answer 1

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Answer 2

Side of a square field = 150 m

Wide of the road = 5 m

The area of road of opposite side of square field = 160 × 5 × 2 = 1600 m ^2

Area of road of opposite side = 150 × 5 × 2 = 1500 m ^2

.

• • Total area of road = 1600 + 1500 = 3100 m^2

cost of constructing road per unit area = rupees 250

Total cost of constructing roads around square field = 3100 ×250 = rupees 77500

777500 is the answer

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