a frog has fallen into a well of depth 88m. it climbs 12m during the day but slips down 8m during the night .how many days does it take to reach the top the first time
To climb 88 m, the frog would take 22 days.
Note that on the 19th day, the frog will start at the 76 m level and climb 12 m during the day to just reach 88 m.
If some sort of platform exists to prevent his sliding back, then he could achieve his journey at the end of 20 days .