The following table depicts the number of people in 4 different villages (A, B , C and D), and the ratio of literate to illiterate people in those villages.
| Villages | Population |
Literate : Illiterate |
| A | 1500 | 2∶3 |
| B | 4000 | 11∶9 |
| C | 3000 | 13∶2 |
| D | 5500 | 4∶1 |
What is the percentage of literate people in all the four villages together?
1
72%
2
67%
3
70%
4
65%