Answer:
The cost of carpeting the room is Rs 19,200
Step-by-step explanation:
Given as :
The height of the four wall = h = 4 meters
The cost of painting the wall at the rate of rs 15 per square meter = rs 2400
The length of room = L
The breadth of room = b = of length
i.e b =
Let The cost of carpeting the room =rs x
Now, According to question
∵Area of 4 wall = 2 × (Length + breadth)× height
i.e Area = 2 × (L + b)× h
Or, Area = 2 × (L + )× 4
Or, Area =
<u>Now, </u>
The cost of painting the wall at the rate of rs 15 per square meter = rs 2400
∴ The cost of painting the 4 wall =
i.e = 160
Or, L =
So, length = L = 12 meters
The breadth = b =
i.e breadth =
Or, breadth = 8 meters
<u>Again</u>
Area of rectangular room = length × breadh
i.e Area of rectangular room = 12 meters × 8 meters
Or, Area of rectangular room = 96 meters²
<u>Now, </u>
The cost of carpeting the room at rs 200 per meters² = area of room × rate of carpeting
i.e x = 96 meters² × 200 per meters²
Or, x = rs 19,200
So, The cost of carpeting the room = x = rs 19,200
Hence, The cost of carpeting the room is Rs 19,200 Answer