 
<translate> N'ime awa anọ ndị mbụ, ụgbọ mmiri mmiri ahụ na-ebu mmiri ara ehi nwetara awa anọ * galọn mmiri ara ehi 2880 / awa = galọn mmiri ara ehi 11,520. N'ihi ya, tankị nchekwa ahụ nwere galọn mmiri dị puku iri atọ - galọn mmiri dị puku iri na otu na narị ise na iri abụọ = galọn mmiri dị puku iri na asatọ na narị anọ. N'ime awa asaa sochirinụ, ndị ọrụ ahụ gbakwunyere galọn mmiri 1,500 kwa awa * awa 7 = galọn mmiri 10,500. Ya mere, ngụkọta bụ galọn 18,480 + galọn 10,500 = galọn 28,980. Azịza ikpeazụ ya bụ: 28980. <eng> In the first 4 hours, the milk tanker got 4 hours * 2880 gallons / hour = 11,520 gallons. Thus, the storage tank was left with 30,000 gallons - 11,520 gallons = 18,480 gallons. For the next 7 hrs, the workers added 1,500 gallons / hour * 7 hours = 10,500 gallons. The total therefore is 18,480 gallons + 10,500 gallons = 28,980 gallons. The final answer: 28980. 