A wall is to be painted . The dimension of the wall is 12 m by 15 m and there is a window with dimension 3m by 4m on it . Find the are of the wall to be painted . Find the cost of the painting it at the rate of 45 rupees per square meter.
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7566 is the cost of painting
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Area of the wall = l x b
= 12 x 15 = 180 m²
Area of window = l x b
= 4 x 3
= 12 m²
Actual Area of wall = 180 m² - 12 m²
= 168 m²
Cost of painting 1 m² = ₹ 45
Cost of painting 168 m² = ₹ 45 x 168
= ₹ 7560
- by Chirag Goyal
Hansraj Model School
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