Level 1-2 is 1 day
2-3 is 4 days
3-4 is 9 days
4-5 is 16 days
5-6 is 25 days
6-7 is 36 days
7-8 is 49 days
8-9 is 64 days
So i can conclude 9-10 is 81 days. So nearly 3 months
Level 1-2 is 1 day
2-3 is 4 days
3-4 is 9 days
4-5 is 16 days
5-6 is 25 days
6-7 is 36 days
7-8 is 49 days
8-9 is 64 days
So i can conclude 9-10 is 81 days. So nearly 3 months