Question

10. The floor of a rectangular hall has a perimeter of 300 m, its height is 8m. Find the cost of white
washing the four walls (including door, windows etc.) at the rate of 9 per meter square​

Answer 1

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

Given:-

• Perimeter of floor of a rectangular hall = 300 m

• Height of the hall = 8 m

• Cost of white washing = ₹ 9/m²

→ Area of 4 Walls = 2 (l + b) × h

→ Area of 4 Walls = (300 × 8) m²

→ Area of 4 Walls = 2,400 m²

→ Total Cost of white washing = 2,400 m² × ₹ 9/m²

→ Total Cost of white washing = ₹ 21,600

Therefore, the total cost of white washing the four walls of the hall is ₹ 21,600

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