Each day, the frog is able to climb 1 meter (3 meters up - 2 meters down).
To escape a 30 meter pit, the frog will need to climb an extra meter on the last day.
Therefore, it will take the frog 30 days to escape from the pit.
A frog has fallen in a pit that is 30 m deep
Each day it climbs 3 m and falls back 2 m at night
How many days did it take to escape from the pit
1 answer