Question

Q.6 a)
Find the cost of cementing wall of length 14 mx 11 m which is provided with
space for a door of dimension 4 mx 2.8 m and the window of dimension
1.5 m 1.2 m at the rate of 5.75 per m2.​

Answer 1

Answer:

810.75

Step-by-step explanation:

Area of the wall including door space and window space (x) = 154m2

Area of the door (y) = 11.2m2

Area of the window (z) = 1.8 m2

Now area of the wall excluding door and window space (p) = x-y-z

p=x-y-z

p=154-11.2-1.8

p=141m2

but given per m2 cost is 5.75

so for 141 m2, cost will be 141*5.75=810.75

hence the cost of the wall will be 810.75