The table given below shows the sales of two companies in 5 years.
| Companies | ||
| Years | A | B |
| P | 350 | 1150 |
| Q | 550 | 850 |
| R | 750 | 950 |
| S | 650 | 350 |
| T | 450 | 250 |
L1 = The difference between the total sales of A and B in all years.
L2 = The value of average sales of A in all years.
What is the value of (L1 ∶ L2)?
1
11 ∶ 17
2
11 ∶ 16
3
16 ∶ 11
4
13 ∶ 12