In a firm the ratio of male and female members was 4 ∶ 5. The firm decided to increase the number of males by 80% and the number of females by 60%. What will be the new ratio of male members to female members in the firm?
1
8 ∶ 10
2
15 ∶ 16
3
18 ∶ 15
4
9 ∶ 10