 <translate> A's 1 hour work = 1/3;
(B + C)'s 1 hour work = 1/2;
(A + B)'s 1 hour work = 1/2
(A + B + C)'s 1 hour work = (1/3 + 1/2) = 5/6
C's 1 hour work = (5/6 - 1/2) = 1/3
C alone will take 3 hours to do the work. <yor> Iṣẹ́ wákàtí kan ti A = 1/3; (B + C) ní wákàtí kan iṣẹ́ = 1/2; (A + B) ní wákàtí kan iṣẹ́ = ìdajì (A + B + C) máa fi wákàtí kan ṣiṣẹ́ = (1/3 + 1/2) = 5/6 C jẹ wákàtí kan iṣẹ́ = (5/6 - 1/2) = 1/3 C nìkan yóò gba wákàtí mẹ́ta láti ṣe iṣẹ́ náà. 