Question
Download Solution PDFThe length, breadth, and height of a room are 10 m, 8 m and 6 m respectively. Find the cost of white washing the walls of the room and the ceiling at the rate of Rs. 7.50 per m2.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
Length of room = 10 m
Breadth of room = 8 m
Height of room = 6 m
Rate of whitewashing = Rs 7.50 per m2
Concept Used:
Area of four walls of room = 2h (l + b)
Area of ceiling = l × b
Calculation:
Area of four walls of room = 2h (l + b)
Area of four walls of room = 2 × 6 (10 + 8)
⇒ 12 × 18= 216 m2
Area of ceiling = l × b
Area of ceiling = 10 × 8 = 80 m2
Total area of four walls and ceiling = 216 + 80 = 296 m2
Now, the cost of whitewashing the walls and ceiling = 296 × 7.50 = Rs.2,220
∴ The price for whitewashing the walls of the room and the ceiling is Rs.2,220
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