Question

A door of dimensions 3 m x 2m is on the wall of dimension 10 m x 10 m. Find the cost of painting the wall if rate of painting is Rs 2.50 per sq. m.​
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Answer 1

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Answer 2

Step-by-step explanation:

Given length of the door = 3 m Also given that breadth of the door = 2 m Side of the wall = 10 m We know that Area of the square = (Side)2  Area of the wall = Side x Side = 10 m x 10 m = 100 m2 We know that the area of the rectangle = length x breadth Area of the door = Length x Breadth = 3 m x 2 m = 6 m Thus, required area of the wall for painting = Area of the wall – Area of the door = (100 – 6) m2 = 94 m2 Rate of painting per square metre = Rs. 2.50 Hence, the cost of painting the wall = Rs. (94 x 2.50) = Rs. 235RS A-door-of-dimensions-3-m-x-2-m-is-on-the-wall-of-dimension-10-m-x-10-m

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