# Question #c260f

##### 1 Answer

#### Answer:

Height of the room is

#### Explanation:

Given -

Length of the room

Cost of preparing the wall

Total cost of preparing the wall

Cost of matting the floor

Total Cost of Matting the floor

Let Lenth of the floor be

Let the width of the floor be

Then, the area of floor

Cost of matting the floor

Total Cost of Matting the floor

Since length is

#10.20b=91.80#

#b=91.80/10.20=9 m#

There are four walls.

Let the height of the wall be

Total area of wall is

#=[2(12+9)]xxh=[2(21)]xxh=42h. m^2#

Total cost of preparing the wall#=42h xx 1.35=56.7h#

#56.7h=340.20#

#h=340.2/56.7=6 m#

Height of the room is