Question

Find the cost of whitewashing a wall, at the rate of * 30 per m2,
if there is a door frame of dimensions 3 mx 4 m in a wall of
dimensions 10 mx 5 m.​

Answer 1

Answer:

.Area of the wall 10x5=50m2

Door frame=3x4=12

Area to be whitewashed = 50-12

= 38m2

cost=38x30 = Rs. 1140