5 days
net 2 ft/day for 4 days, ends up at 8 ft.
On day 5, up to 12, and out
An ant is at the bottom of a 12-foot deep well and is trying to get to the top. During the day he climbs 4 feet IP up, but at night he slides back 2feet. How long does it take for him to get out of the well?
2 answers
16