 
 <translate> A's one day's work = 1/30
B's one day's work = 1/45
(A + B)'s one day's work = 1/30 + 1/45 = 1/18
The part of the work completed in 3 days = 3 (1/18) = 1/6.
This justifies what answer for what question? Q & A:  <ibo> A bụ otu ụbọchị ọrụ = 1/30 B bụ otu ụbọchị ọrụ = 1/45 (A + B) bụ otu ụbọchị ọrụ = 1/30 + 1/45 = 1/18 Akụkụ nke ọrụ a rụzuru n'ime ụbọchị 3 = 3 (1/18) = 1/6. Olee ajụjụ nke a na-eme ka a zaa? Ajụjụ na Azịza: 