A frog is in a well that is 30 meters deep the frog goes up 3 meters in the day and then goes down 2 meters each night. How many days will it take for the frog to get out?

Just with logical common sense,
I suggest it would take the frog 30 days.

A frog is in a well that is 30 meters deep
The frog moves up 3 meters/day and then down 2 meters/night. How many days will it take for the frog to get out?


He'll be out in 28 days. He won't have to drop down during the 28th night.