The internal measures of a cuboidal room are 12 m*8 m*4 m. find the total cost of painting all for walls of a room, if the cost of painting is 5 per m2 . what will be the cost of painting if ceiling of the room is also painted?
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Internal measures =12×8×5
Area of walls=2 (12+8)5
=2×80
=160
Cost of painting=5m2
160×5
=800 Rs.
Aeea of the cielling=L×B
=12×8
=96cm2
Cost of painting the cielling=96×5
=480Rs.
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