 
 <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:  <hau> A aikin kwana daya ne = 1/30 B aikin kwana ɗaya = 1/45 (A + B) aiki ne na kwana daya = 1/30 + 1/45 = 1/18 Sashin aikin da aka kammala a cikin kwanaki 3 = 3 (1/18) = 1/6. Wannan ya ba da dalilin amsa wace tambaya ce? Tambaya da Amsa: 