-- The first person does 1/8 of the job each hour.
-- Together, they do 1/6 of the job each hour.
-- The second person does (1/6 - 1/8) = (4/24 - 3/24) = 1/24 of the job each hour,
so it takes that poor guy 24 hours if he has to do the whole job alone.
You do realise that there are only twenty-four hours in a day, right? Generally, a dog shouldn't be left alone for more than four hours. My Labrador Retriever is seven months old and is left alone for four hours in the morning, then I will come home at lunchtime for an hour, then he will be left alone for another four hours before I finish work.
The duration of Alone with Her is 1.3 hours.
The duration of For You Alone is 1.75 hours.
The duration of Home Alone is 1.7 hours.
The duration of Utterly Alone is 1.5 hours.
The duration of Ourselves Alone is 1.13 hours.
The duration of For Love Alone is 1.7 hours.
The duration of I Walk Alone is 1.62 hours.
The duration of Waiting Alone is 1.78 hours.
The duration of You Are Not Alone - film - is 1.5 hours.
The duration of She Fought Alone is 1.45 hours.
The duration of We Are Not Alone - film - is 1.87 hours.