The length,breadth and height of the room 5m,4m,and 3m respectively. Find the cost of white washing the walls of the room and the ceiling at the rate of7.50 rs per m²
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lakhipriyadas1:
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For us to get the total cost of painting , we must first get the total surface area of this room. the room is in the shape of a cuboid.
Since the roof will also be painted, we get the total surface area of a closed cuboid.
The surface area:
(2×5×4)=40
(2×4×3)=24
(2×5×3)=30
Summing them:40+24+30=94m2
1m2=rs7.50
94m2=?
Cross multiplying we get:
94×7.50=rs 705
Rs705
Since the roof will also be painted, we get the total surface area of a closed cuboid.
The surface area:
(2×5×4)=40
(2×4×3)=24
(2×5×3)=30
Summing them:40+24+30=94m2
1m2=rs7.50
94m2=?
Cross multiplying we get:
94×7.50=rs 705
Rs705
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