The total number of teachers in different subjects and the respective percentage of females among them in a school are given in the following table. Study the table and answer the following question.
| Subject | Total number of teachers | Percentage of females |
| Hindi | 50 | 80 |
| English | 40 | 90 |
| Mathematics | 60 | 35 |
| Science | 55 | 40 |
| Commerce | 30 | 50 |
| Social Science | 40 | 75 |
What is the ratio of the number of male teachers to that of female teachers in Social Science?
1
3 ∶ 1
2
2 ∶ 3
3
1 ∶ 3
4
3 ∶ 2