 
 <translate> Student: A man, a woman and a boy can complete a job in 3, 4 and 12 days respectively. How many boys must assist 1 man and 1 woman to complete the job in 1/4 of a day?
Options:
(A) 41
(B) 43
(C) 31
(D) 84
(E) 81.
Another student: Let's say, hmmm...
 <hau> Dalibi: Namiji, mace da saurayi na iya kammala aiki a cikin kwanaki 3, 4 da 12. Yara nawa ne ya kamata su taimaki namiji 1 da mace 1 don kammala aikin a cikin 1/4 na rana? Zaɓuɓɓuka: (A) 41 (B) 43 (C) 31 (D) 84 (E) 81. Wani ɗalibi: Bari mu ce, hmmm... 