From Wiktionary, the free dictionary
Literally, “two [and] half”.
duhag tunga
- (standard) two and a half (2½); two (2) and one half (0.5/½)
Duhag tunga ka kilong bugas.- Two and a half kilos of rice.
- (general) two (2) added to any halves of one (0.25, 0.4, 0.75, etc. : 2.25, 2.4, 2.75, etc.)