the length breadth and height of a room are 6m,5m and 4m respectively (a) find the total surface area of the room
(b) find the cost of whitewashing the walls of the room and the ceiling at the rate of ₹5per m square
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Answer:
a)Total surface area of room =2(lb+bh+lh)
=148 per m square
b) Cost of white washing the room =148×5=740 per m sq
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