The pie chart given below shows the number of car sold by 8 different companies. The total number of car sold by all these 8 companies are 5,000. Number of cars sold by a particular company is shown as a percent of total number of cars sold by all these 8 companies.
What is the ratio of total central angle formed by sector R and S to the total central angle formed by sector U and V?
1
1 ∶ 4
2
2 ∶ 1
3
1 ∶ 2
4
3 ∶ 1