If the length, breath and height of room are 25 m, 15 m and 30 m, respectively, then what will be the area (in m²) of the four walls of the room?

Correct option is A

Given:

Length = 25 m

Breadth = 15 m

Height = 30 m

Formula Used:

Area of four walls = 2h(l + b)

Solution:

Area of four walls = 2 × 30 × (25 + 15)

= 60 × 40

= 2400m²

Thus, The area of the four walls of the room is 2400 m²