Question

a Path 5 M wide runs along inside a scrap Park of side 100 M find the area of that also find the cost of cementing it at rhe rate of rs 250 per m square

Answer 1

Length of the big square = 100 m

Length of the small square = 5 m

Side of the smaller square = Side of the bigger square - 2(width of the park)

 = 100 - 2(5)

 = 90 m

Area of the path = (100)² - (90)² = 10000 - 8100 = 1900m²

Cost of cementing at the rate of Rs 250 per 10 m² = 250 x 190 = Rs 4750

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Answer 2

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ABCD square garden of side=100 m
PQRS inside garden
PQ= 30-5-5=20 m
PS= 20 m

Area of remaining garden= 20×20=400 m2

Cost of cemanting= 400× 250 = 100000 rupees

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