A godown is 50m long. 40m broad. And10m high. Find the cost of white washing its four walls ceiling at rs 20per square metre.
To find the cost of white washing the four walls and ceiling of the godown, we need to calculate the total surface area that needs to be painted.
Step 1: Calculate the surface area of each wall:
The godown has four walls, and each wall's surface area can be calculated by multiplying its length and height.
Surface area of each wall = Length x Height
Given: Length of the godown = 50m and Height of the godown = 10m
Wall 1: Surface area = Length x Height = 50m x 10m = 500 square meters
Wall 2: Surface area = Length x Height = 50m x 10m = 500 square meters
Wall 3: Surface area = Length x Height = 50m x 10m = 500 square meters
Wall 4: Surface area = Length x Height = 50m x 10m = 500 square meters
Step 2: Calculate the surface area of the ceiling:
The surface area of the ceiling can be calculated by multiplying the length and breadth of the godown.
Surface area of the ceiling = Length x Breadth
Given: Length of the godown = 50m and Breadth of the godown = 40m
Ceiling: Surface area = Length x Breadth = 50m x 40m = 2000 square meters
Step 3: Calculate the total surface area to be painted:
Total surface area = Sum of the surface area of all four walls + Surface area of the ceiling
Total surface area = (500 + 500 + 500 + 500) + 2000 = 3500 square meters
Step 4: Calculate the cost of white washing:
Given: Cost of white washing per square meter = Rs 20
Cost of white washing = Total surface area x Cost per square meter
Cost of white washing = 3500 square meters x Rs 20 per square meter
Cost of white washing = Rs 70,000
Therefore, the cost of white washing the four walls and ceiling of the godown at Rs 20 per square meter is Rs 70,000.
To find the cost of white washing the four walls and ceiling of the godown, we need to calculate the total area that needs to be white washed.
The godown has four walls, each with a length of 50m and a height of 10m. The total area of the four walls can be calculated by multiplying the perimeter of the base (length + breadth) by the height.
Perimeter of the base = 2 * (length + breadth) = 2 * (50m + 40m) = 2 * 90m = 180m.
So, the total area of the four walls = Perimeter of the base * height = 180m * 10m = 1800 square meters.
The godown also has a ceiling with the same dimensions as the base (50m * 40m), so its area is 50m * 40m = 2000 square meters.
Now, we can calculate the total area that needs to be white washed by summing up the areas of the walls and the ceiling: 1800 square meters + 2000 square meters = 3800 square meters.
Finally, to find the cost of white washing, we multiply the total area by the cost per square meter: 3800 square meters * Rs 20 = Rs 76,000.
Therefore, the cost of white washing the four walls and ceiling of the godown at Rs 20 per square meter is Rs 76,000.
The area is 2 2long walls, 2 short walls, and the floor
You know how to find the area of a rectangle, so add up the 5 areas and multiply by 20rs/m^2