A door frame of dimensions 4 m × 5 m is fixed on the wall of dimension 11 m × 11 m . Find the total labour charges for painting 1m2 of the wall is 6 a) Rs 2.50 .
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Given,
Dimensions of the door frame = 4m × 5m
Dimensions of the wall = 11m × 11m
Labour charges = Rs. 2.5/m²
To find,
The total labour cost.
Solution,
We can simply solve this mathematical problem by using the following mathematical process.
Door frame area = 4×5 = 20m²
Wall area = 11×11 = 121 m²
Painting area = (121-20) = 101 m²
(Because door frame is a cavity area for the door.)
Labour cost = (101×2.5) = Rs. 252.5
Hence, the labour cost will be Rs. 252.5
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