Question

Area of four walls of a room is 99 m2. the length and breadth of the room are 7.5 m and 3.5m respectively. the height of the room is:

Answer 1

Area of 4 walls of a room = 2 (Length + Breadth) x Height

99 m^2=2[7.5 m + 3.5m]x Height

99 m^2=2[11m]x Height

99 m^2=22mx Height

99 m^2÷22m= Height

9 /2m=Height ⇒4.5m ANS

Answer 2

The height of the room is 4.5m

Given : Area of four walls of a room is 99 m2. the length and breadth of the room are 7.5 m and 3.5m respectively.

To find : The height of the room.

Solution :

We can simply solve this mathematical problem by using the following mathematical process. (our goal is to calculate the height of the room)

Here, we will be using the following mathematical formula.

Area of four walls of a room = [{2 × (Length + Breadth)} × Height]

By, putting the available data, we get :

99 = [{2×(7.5+3.5)} × Height]

Or,

Height × 22 = 99

Height = 99/22 = 4.5 m

(This will be considered as the final result.)

Hence, the height of the room is 4.5m.