tolong jawab nomor 10

pake KPK (tangga faktor)

2 | 8 16 20
2 | 4 8 10
2 | 2 4 5
2 | 1 2 5
5 | 1 1 5
| 1 1 1

KPK = 2×2×2×2×5
=80

Feb 12 sampe tgl 29
Mar 12 sampe tgl 31
Apr 12 sampe tgl 30

15 Feb '12 + 80 hari = 5 Mei 12

ga ada jawabannya ituu