The volume of each floor is calculated as
Where l represents the lenght of the floor, w is for the width and h is the height.
You have the area of each floor, and also the height.
The area of the floor is caculated as
So if you use this equation in the first I gave to you, one can obtain this:
The volume for each floor is then calculated with the data you gave in the problem.
For example, for the first floor you have Area=25 ft. and Height=15 ft.
The volume of the first floor is then V=A*h=(25 ft.)*(15 ft.)=375 square feet
Calculating for the rest of the floors:
Floor number
|
Area (ft.)
|
Height (ft.)
|
Volume (sq ft.)
|
Ground
|
25
|
15
|
375
|
2
|
23
|
15
|
345
|
3
|
20
|
15
|
300
|
4
|
18
|
15
|
270
|
5
|
16
|
15
|
240
|
6
|
14
|
15
|
210
|
7
|
12
|
15
|
180
|
8 |
10 |
15 |
150 |
9 |
9 |
15 |
135 |
10 |
8 |
15 |
120 |
Roof |
7 |
15 |
105 |
Then you calculate the total volume of the building, summing the volume column of the table.
The total volume of the building is 2430 square feet.