How many Days- One Puzzle a Day -Puzzle Buddies

Puzzle: There is a frog lying under the bottom of a well of depth 40 meters.every day morning the frog leaps up 4 meters and it sleeps till next morning.while the frog is asleep he falls 3 meters down.how many days it will take the frog to escape from the well?

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Solution: on first day the frog jumps from 0 t0 4 meters and by night it slips 3 meters

so day 2 it starts at 1

day 3 it starts at 2 likewise

day 37 it starts at 36 and it jumps 4 meters and it comes out

So it takes 37 days.

Winner: Gaurave