 
 <translate> Q: A and B together can complete a work in 12 days. A alone can complete it in 20 days. If B does the work only for half a day daily, then in how many days A and B together will complete the work?
Options:
(A) 11 days
(B) 77 days
(C) 15 days
(D) 18 days
(E) 19 days
A: (C) <hau> Tambaya: A da B tare za su iya kammala aiki a cikin kwanaki 12. A kaɗai zai iya kammala shi cikin kwanaki 20. Idan B ya yi aikin na rabin rana ne kawai a kullum, to kwana nawa ne A da B za su gama aikin tare? Zaɓuɓɓuka: (A) Kwana goma sha ɗaya (B) Kwana 77 (C) kwanaki 15 (D) Kwana goma sha takwas (E) Kwana goma sha tara A: (C) 