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प्रश्न
Thenmozhi wants to level her circular flower garden whose diameter is 49 m at the rate of ₹ 150 per m2 Find the cost of levelling
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उत्तर
Diamter of the circular garden d = 49 m
Radius r = `"d"/2 = 49/2` m
Area of the circular garden = πr2 sq.units
= `22/7 xx 49/2 xx 49/2 "m"^2`
= 1,886.5 m2
Cost of levelling a m2 area = ₹ 150
∴ Cost of levelling 1886.5 m2 = ₹ 150 × 1886.5
= ₹ 2,82,975
Cost of levelling the flower garden = ₹ 2,82,975
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