Question

The length, breadth and height of a room are 5m,4m and 3m respectively, find the cost of white washing the walls of the room and the ceiling at the rate of Rs.7.50 per m²

Answer 1

Length, breadth and height of a room are 5 m, 4 m and 3 m. Area of four walls of the room = 2h(l + b) = 2 x 3 (5 + 4) = 6(9) = 54 sq m Area of the ceiling = l x b = 5 x 4 = 20 sq cm. Total area of the four walls and the ceiling of the room = 54 + 20 = 74 sq cm Cost of white washing = Rs 7.50 per sq m Total cost of white washing = 74 x 7.50 = Rs 555

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Answer 2

Answer:

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Step-by-step explanation:

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