In an examination, the ratio of practical to theory marks is 3 ∶ 7. If 80% of the marks are scored in the practical and 60% of marks are scored in the theory, what is the ratio of marks scored in the theory and the practical?
1
6 ∶ 7
2
5 ∶ 7
3
7 ∶ 4
4
3 ∶ 7