Question

find the dimension of your room and calculate cost of whitewashing the same at the rate of rupees hundred per metre square the duct the area of door and window​

Answer 1

Given: The rate of white washing is rupees 100 per metre square

To find: Cost of whitewashing.

Solution:

• Now assuming the dimensions as:

• Length = 10 m, width = 8 m, height = 6 m and combined area of door and windows is 35 m².

• Now the rate of whitewashing is rupees 100 per square metre.

• So the surface area of four walls is:

          2(lxw) + 2(wxh)

          2(10x8) + 2(8x6)

          2(80) + 2(48)

          160 + 96

          256 metre²

          Area for white washing : actual surface area - combined area of door and windows

          Area for white washing : 256 - 35 = 221 m^2

So the cost of white washing is:

          221 m^2 x 100

          22100 Rs.

Answer:

            So the cost of whitewashing is 22100 Rs.