the walls and ceiling of a room are to be plastered the Length breadth and height of the room are 4.5 M 3 m and 350 CM respectively find the cost of plastering the room at the rate rupees 12 per square metre
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TSA=2(lb+bh+lh)
=2(4.5×3+3×3.5+4.5×3.5)
=2(13.5+10.5+15.75)
=2(39.75)
=79.5 m^2
If 1m^2= rs 12
Then 79.5m^2= rs 79.5 ×12= rs 954
=2(4.5×3+3×3.5+4.5×3.5)
=2(13.5+10.5+15.75)
=2(39.75)
=79.5 m^2
If 1m^2= rs 12
Then 79.5m^2= rs 79.5 ×12= rs 954
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