Question

door of length 2 metre all breadth one metre is fitted in a wall the length of the wall is 4.5 metre and the the breadth is 3.6 metre find the cost of white was the wall if the rate of white was the wall is rupees 20 per metre square​

Answer 1

Answer:

Rs. 284

Step-by-step explanation:

Surface area of wall= 4.5× 3.6 m² =16.2 m²

Surface area of door= 2×1 m²= 2m²

Area to be whitewashed = 16.2-2 m² = 14.2 m²

Cost of whitewashing = Rs. 14.2×20 = Rs. 284