Comprehension Passage
The bar graph given below shows the earning of a company (in million Rs.) from 1991 to 1999. Read it and answer the following questions correctly.
The ratio of number of years, in which earnings of a company are below the average earning, to those in which the earnings are above the average is
1
2 ∶ 6
2
3 ∶ 4
3
5 ∶ 3
4
None of these