11. A rectangular lawn 70 m by som has two roads, each 5 m wide, running through its
middle, one parallel to its length and the other parallel to its breadth Pind the cost of
constructing the roads alt 120 per m
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Answer:
Step-by-step explanation:
Area of the road parallel to the length= 70m×5m= 350m^2
Area of the road parallel to the breadth= 50m×5m=250m^2
Area of the portion of the road overlapping= 5m×5m=25m^2
Total area of the road= (350m^2 + 250m^2)- 25m^2 = 575m^2
Cost of construction= 120×575= Rs. 69,000
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