Seats of Mathematics, Physics and Biology in a school are in the ratio 4 : 5 : 8. There is a proposal to increase these seats by 50%, 20% and 25% respectively. What will be the ratio of increased seats?
1
3 : 2 : 4
2
3 : 5 : 7
3
5 : 7 : 9
4
3 : 3 : 5