a room is of 11m×8m×5m. find the cost of cementing its fur walls and floor at the rate of rupees 4 per square metre including doors and windows etc
Answers
Answered by
4
In this, 11=length,
8=breadth
5=height
Area of four walls =2(l+b) *h
Area of four walls =2(11+8)*5=10*19=190
Cost of cementing =190*4=₹760
8=breadth
5=height
Area of four walls =2(l+b) *h
Area of four walls =2(11+8)*5=10*19=190
Cost of cementing =190*4=₹760
Answered by
1
Length = 11 m
Breadth = 8m
Height = 5m
Lateral surface are of room = 2 (length + breadth) × height
Lateral surface area of room = 2 (11 + 8) × 5
= 2 × 19 × 5
= 190
area of four walls = 190 m^2
cost of cementing 1 m^2 = Rs 4
cost of cementing four walls = 190 × 4 = Rs 760
Breadth = 8m
Height = 5m
Lateral surface are of room = 2 (length + breadth) × height
Lateral surface area of room = 2 (11 + 8) × 5
= 2 × 19 × 5
= 190
area of four walls = 190 m^2
cost of cementing 1 m^2 = Rs 4
cost of cementing four walls = 190 × 4 = Rs 760
Similar questions