Answer: 17 days
Step-by-step explanation:
Two were done on the first day and then 3 on the second.
The number of apartments left is:
= 90 - 2 - 3
= 85 apartments
They are to be done 5 per day:
= 85 / 5
= 17 days
It would take 17 days to do the remaining at 5 apartments per day.
