What is the total cost of painting of a classroom including ceiling, if the size of length is 6m,breadth is 5m and height is 4m. (Painting + labourcost Rs.150/- per sq.m
Answers
Answer: Rs. 18900
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Step-by-step explanation:
Given :
Length of classroom (l) = 6m
Breadth of classroom (b) =5m
Height of classroom (h) = 4m
Painting + labourcost = Rs.150/- per sq.m
Here,
We have to paint all the 4 walls and ceiling of the classroom.
Thus, we have to find first area of that part. The classroom is a cuboid.
Area(A) = Area of 4 walls( horizontal area of a cuboid)+ Area of ceiling ( l×b)
Horizontal area of cuboid = 4×l×h Thus,
A = 4(6×4)+(6×5)
A = 96+30
A = 126 sq.m.
Therefore,
The total cost of painting
= 126×150
= 18900
Ans. The total cost of painting of a classroom is Rs. 18900.
Answer: ₹ 17,700
Explanation:
Total surface area for painting
= Lateral surface area + Area of ceiling
= (88+30) m²
= 118 m²
Total cost of painting
= ₹ 150 x 118
= ₹ 17,700
