Question

please answer this ............ ....

Answer 1

picture is not clear write measurements that are important write in comment I will read and edit my answer

Answer 2

Area of Four walls = 2(l+b)h

Given, Length (l) = 12 m
Breadth (b) = 8 m
Height (h) = 4m

Now, put this on Formula,

=> C.S.A = 2(12+8) x 4

=> C.S.A = (2 x 20 x 4) m^2

=> C.S.A = 160 m^2

Now, Cost of Washing 4 walls = Rs (160 x 15)

=> Cost = Rs 2400

Again,

The ceiling of room is in the form of Rectangle,

=> Ar(Rectangle) = l x b

=> Ar (Rectangle) = 12 x 8 m^2

=> Ar(Rectangle) = 96 m^2

Cost of Washing Ceiling = Rs (96 x 15) = Rs 1440

Hence, Total cost of Washing = Cost of 4 wall + Cost of Ceiling

=> Total Cost = Rs (2400 +1440)
=> Total Cost = Rs 3840


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