Question

tell answer please. ​

Answer 1

Answer:

hey mate here is your answer

Step-by-step explanation:

● length of room = 7 m

breadth of room = 5 m

height of room = 3 m

so the surface area of four wall of room =

2h (l+b)

= 2×3 (7+5)

= 6 × 12 = 72 m^2

since the cost of per m^2 area painting of the four walls = 10 rs

so the total cost of painting = 72 × 10

= 720 rs