The length, breadth and height of a hall are 50 m, 14 m and 4 m, respectively. Find the cost of white washing the walls of the room and the ceiling at the rate of AED 12.50 per m2. please answer.
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The length, breadth and height of a hall are 50 m, 14 m and 4 m, respectively. Find the cost of white washing the walls of the room and the ceiling at the rate of AED 12.50 per m2. please answer.
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Answer:
The cost of white washing is Rs. 15,150
Step-by-step explanation:
Given:
• Length (l) = 50 m
• Breadth (b) = 14 m
• Height (h) = 4 m
• Rate = 12.50
Find :
• The cost of white washing the walls of the room and the ceiling .
Solution :
★ Area of 4 walls + Area of ceiling
⇒ 2 (l + b) × h + l × b
⇒ 2 (50 + 14) × 4 + 50 × 14
⇒ 2 (64) × 4 + 700
⇒ 128 × 4 + 700
⇒ 512 + 700
⇒ 1212
★ Total area = 1212 m²
Cost = rate × area
⇒ 12.50 × 1212
⇒ 15,150
Therefore,
The cost of white washing is Rs. 15,150
Verified answer
Given
•Length(l) = 50m
•Breadth (b) = 14m
•Height (h) = 4m
•Rate = Rs.12.50
✯total surface area of the White wash of the rooms and the ceiling
⇒2 × h (l + b) + (l × b)
⇒2 × 4(50 + 14) + (50 × 14)
⇒8(64) + 700
⇒512 + 700
⇒1212 m²
✯Cost of white wash
⇒rate × area
⇒12.50 × 1212
⇒Rs.15,150
cost of white washing is 15,150 rupees