Question

A godown is 50 m long,40m broad and 10m gh .find the cost of wtewasng its four walls and ceiling at rupees 20 per square meter?

Answer 1

l=50
b=40
h=10
area=2 (lb+bh+lh)=2 (50×40+40×10+50×10)
2 (2000+400+500)
2×2900
5800 sq m
cost of 1 sq m=20 rs
cost of 5800 sq m =20×5800=116000 rs

Answer 2

hloo frnd and your answer is as follows........

Since whitewashing is to be done of a Godown, then the four wall and the ceiling has to white washed.

The dimensions of two walls will be Length = 50 M, Height = 10 M.

So the area of the two walls will be = 2 (L X H) = 2 ( 50 x 10) = 1000 M2.

The dimension of the other two walls = Broad = 40 M, Height = 10 M.

So the area of the other two walls = 2(B x H) = 2(40 x 10) = 800 M2.

Dimension of the ceiling = Length = 50 M, Broad = 40 M

So the area of the ceiling = L x B = 50 x 40 = 2000 M2.

So the total area to be white washed = 1000 + 800 + 2000 = 3800 M2.

Cost of white washing = Rs 20 per M2.

So the cost of white washing the complete godown = 3800 x 20 = Rs. 76000.00

Ans: Rs. 76000.00



hope it may helps u and all the best for your exam......☺☺