A rectangular lawn is 80 m by 40 m. It has two roads of 2 m wide running in the middle one parallel o the length and the other parallel to the breadth. Find the area of the roads
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The length and breadth of the lawn are 80 m and 64 m, respectively.
Area of the road ABCD = 80 x 5 = 400 m²
Area of the road PQRS = 64 x 5 = 320 m²
Clearly, the area EFGH is common in both the roads
Area EFGH = 5 x 5 = 25 m²
Area of the roads = 400 + 320 - 25 = 695 m²
Given,
Cost of travelling 1m² area = ₹40
Cost of travelling 695m² area = ₹(695 × 40) = ₹27800
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