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A rectangular park is 50m long and 35m broad.A 3.5m broad pavement runs along the boundary of the park .Find the cost of cementing this pavement at the rate of 400 per 8m sq​

Sagot :

Solution:

Step-1: Find the area of the park.

  • 50 x 35 = Area of park
  • => 1750 m² = Area of park

Step-2: Find the area of the inside rectangle.

  • (50 - 7)(35 - 7) = Area of inner park
  • 43 x 28 = Area of inner park
  • 1204 m² = Area of inner park

Step-3: Subtract the area of the inner park from the area of the park.

  • 1750 - 1204 = Area of pavement
  • => 546 m² = Area of pavement

Step-4: Find the cost per square.

  • $400 = 8 m²
  • => 1 m² = $50

Step-5: Multiply 546 and 50 to find the cost.

  • 546 x 50 = Cost of pavement
  • => $27300 = Cost of pavement
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