A door of dimensions 3 m by 2 m is fixed on the wall of
Dimensions 15 m by 10 m. Find the cost of painting the wall at the
rate of Rs.16.75 per Sq.m
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Length of door = 3 m
Breadth of door = 2 m
Area of door = l × b
= 3 × 2
= 6 m²
Length of wall = 15 m
Breadth of wall = 10 m
Area of wall = l × b
= 15 × 10
= 150 m²
Total are of wall excluding door
= 150 - 6
= 144 m²
Cost of painting 1m² = Rs. 16.75
Cost of painting 144 m² = 144 × 16.75
= Rs. 2412.
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