The walls and ceiling of a room are to be plastered. The Length, breadth and height of the room are 4.5m, 3m and 350 CM respectively. Find the cost of plastering the room at the rate of rupees per metre square.
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Step-by-step explanation:
l = 4.5m
b=3m
h=3.5m
area of the room to be plastered =2(bh×lh)+lb
=2(3×3.5×4.5×3.5)+4.5×3
=344.25m square
cost of plastering= 344.25×1
therefore the cost of plastering is 344 rupees 25 paise
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