A room is 7m long, 6.5 m wide and 4m high. The four walls and ceiling of the room
are to be painted. The contractor charges 10 per m2
. Find the cost of painting.
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Answer:
Rs. 2445
Step-by-step explanation:
area of the wall= 2(lb+ bh+ lh)
= 2{(7× 6.5) +(6.5× 4) +(7× 4) m²
= 2(45.5 +26 +28)
= 2× 99.5
= 199m²
Area of the ceiling= l× b
= 7m× 6.5m
= 45.5m²
Therefore, Total area= 199m²+ 45.5m²= 244.5m²
So, total cost of white washing= Rs.(10× 244.5)
= Rs.2445
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