the dimensions of a room are 5 m × 4 m × 3 m . Find the cost of washing the walls of the room and the ceiling at the rate of 11 .5 per m2
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Answer:
851
Step-by-step explanation:
Formula: 2h(l+b) + lb as ceiling is also painted
area = 2(3)(5+4) + (5 x 4)
= 54 + 20
= 74m^2
cost of painting = 74 x 11.5
= 851
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