Qi? Find the area of the roads, if the roads are running in cross-section through the middle of a ground,
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Step-by-step explanation:
Given, side of the garden = 30m, Width of the path inside the garden = 1m, Cost of the planting of grass = Rs 40 per m2.
Therefore, side of the garden without path = 30m — 1m — 1m = 28m
Area of square = Side2
Area of square garden
=302=900=302=900 m2
Area of garden without path
=282=784=282=784 m2
Area of path = Area of garden — Area of garden without path = 900m2 —784m2 = 116 m2
Cost of planting grass in the remaining portion of garden = Rate × Area
=Rs.40×784=Rs.31360
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