Question

25. A door frame of dimensions 4m x 5m is fixed on the wall of dimension 11m x 11m.
Find the total labour charges for painting the wall if the labour charges for painting 1m?
of the wall is Rs 2.50.​

Answer 1

Answer:

Area of frame = 4×5=20m^2

Area of wall =11×11=121m^2

here we have to subtract the area of frame from area of wall to get the area of wall to be painted.

therefore,

the cost of painting = 121-20 ×2 .50

=252.5 .