Question

the dimensions of a building are 30m,20m ,40m. If the wall, floor and roof of this building are to be repaired the contractor ask for rupees 50 per square metre what will be the estimate of the contractor for this work

Answer 1

Question :

the dimensions of a building are 30m,20m ,40m. If the wall, floor and roof of this building are to be repaired the contractor ask for rupees 50 per square metre what will be the estimate of the contractor for this work

Answer :

₹2,60,000

For full solution refer to the above attachment

Answer 2

$\red{Answer}$
260000Rs


In the questions Given

The given dimensions of building in below .

length = 30m

breadth = 20m

height = 40m


Here we find , Total surface area of the room ( TSA) = ?


Using formula

TSA = 2 ( lb + bh + hl)

= 2 ( 30×20+20×40+40+30)

= 2 ( 600+800+1200)

= 2 ( 1400+1200)
= 2 (2600)

${5200m}^{2}$

Now again we find cost of total surface area of building room.


$1 {m}^{2} cost \: = 50rs \\ \\ {5200m}^{2} cost = 5200 \times 50 = 260000rs.$

Therefore the total cost equal to 260000Rs.

Be brainly