2 As part of the planning for a major office development pro
2. As part of the planning for a major office development project, it is necessary to install telephone lines to the buildings. Information about the project is given below. The distances are provided in feet. What is the total length of this?
Buildings
Distances (feet)
1 to 2
100
1 to 3
350
1 to 4
300
2 to 3
350
2 to 4
300
2 to 5
400
3 to 5
350
3 to 6
450
4 to 5
300
4 to 7
250
5 to 7
200
6 to 7
150
| Buildings | Distances (feet) | 
| 1 to 2 | 100 | 
| 1 to 3 | 350 | 
| 1 to 4 | 300 | 
| 2 to 3 | 350 | 
| 2 to 4 | 300 | 
| 2 to 5 | 400 | 
| 3 to 5 | 350 | 
| 3 to 6 | 450 | 
| 4 to 5 | 300 | 
| 4 to 7 | 250 | 
| 5 to 7 | 200 | 
| 6 to 7 | 150 | 
Solution
Total length is sum od all the distances = 3600 feet


