Question

the perrimeter of a room is 14m find the total costof painting 4 walls at the rate of rs 60 per m2 if its height is 4m

Answer 1

Answer:

Step-by-step explanation:

Perimeter = 2(l+b)

14 = 2(l+b)

14/2 = l+b

7 = l+b

Total area for painting = CSA of cuboid =2 h(l+b)

=> 2*4(7)

=> 2*28

=> 56m²

Cost of painting is Rs. 60 per m².

So, 56m² painting = 56*60 = Rs. 3360