1.7kk 20d + 4kk 18d = 12kk 8d
2.10kk 2d - 5kk 15d =15kk
3.6kk 29d +4kk 11d = 11kk 10d
4.9kk 10d - 7kk 21d =12kk 1d
5. 8kk 19d + 2kk 18d =11kk 7d
6.11kk 1d - 10kk 20d =21kk 21d
7
1.34h
2.53h
3.60h