 
 <translate> Aikin da P ya yi a rana 1 = 1/20 Aikin da Q ya yi a rana guda = 1/12 Aikin da P ya yi a cikin kwanaki 4 = 4 × (1/20) = 1/5 Sauran aikin = 1 <unk> 1/5 = 4/5 Aikin da P da Q suka yi a rana ɗaya = 1/20 + 1/12 = 8/60 = 2/15 Yawan kwanaki P da Q suna ɗaukar don kammala sauran aikin = (4/5) / (2/15) = 6 Jimlar kwanaki = 4 + 6 = 10 Don haka amsar ita ce (E). <yor> Iṣẹ́ tí P ṣe ní ọjọ́ kan = 1/20 Iṣẹ́ tí Q ṣe ní ọjọ́ kan = 1/12 Iṣẹ́ tí P ṣe ní ọjọ́ mẹ́rin = 4 × (1/20) = 1/5 Iṣẹ́ tó kù = 1 <unk> 1/5 = 4/5 Iṣẹ́ tí P àti Q ṣe ní ọjọ́ kan = 1/20 + 1/12 = 8/60 = 2/15 Iye ọjọ ti P ati Q gba lati pari iṣẹ ti o ku = (4/5) / (2/15) = 6 Apapọ ọjọ = 4 + 6 = 10 Nítorí náà ìdáhùn náà ni (E). 